Visual Acuity: Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast.Glare: Relatively bright light, or the dazzling sensation of relatively bright light, which produces unpleasantness or discomfort, or which interferes with optimal VISION, OCULAR. (Cline et al., Dictionary of Visual Science, 4th ed)Contrast Sensitivity: The ability to detect sharp boundaries (stimuli) and to detect slight changes in luminance at regions without distinct contours. Psychophysical measurements of this visual function are used to evaluate visual acuity and to detect eye disease.Corneal Wavefront Aberration: Asymmetries in the topography and refractive index of the corneal surface that affect visual acuity.Visual Perception: The selecting and organizing of visual stimuli based on the individual's past experience.Vision Tests: A series of tests used to assess various functions of the eyes.Vision Disorders: Visual impairments limiting one or more of the basic functions of the eye: visual acuity, dark adaptation, color vision, or peripheral vision. These may result from EYE DISEASES; OPTIC NERVE DISEASES; VISUAL PATHWAY diseases; OCCIPITAL LOBE diseases; OCULAR MOTILITY DISORDERS; and other conditions (From Newell, Ophthalmology: Principles and Concepts, 7th ed, p132).Vision, Ocular: The process in which light signals are transformed by the PHOTORECEPTOR CELLS into electrical signals which can then be transmitted to the brain.Visual Fields: The total area or space visible in a person's peripheral vision with the eye looking straightforward.Visual Cortex: Area of the OCCIPITAL LOBE concerned with the processing of visual information relayed via VISUAL PATHWAYS.Pupil: The aperture in the iris through which light passes.Evoked Potentials, Visual: The electric response evoked in the cerebral cortex by visual stimulation or stimulation of the visual pathways.Refractive Errors: Deviations from the average or standard indices of refraction of the eye through its dioptric or refractive apparatus.Mydriasis: Dilation of pupils to greater than 6 mm combined with failure of the pupils to constrict when stimulated with light. This condition may occur due to injury of the pupillary fibers in the oculomotor nerve, in acute angle-closure glaucoma, and in ADIE SYNDROME.Lenses, Intraocular: Artificial implanted lenses.Presbyopia: The normal decreasing elasticity of the crystalline lens that leads to loss of accommodation.Photometry: Measurement of the various properties of light.Photic Stimulation: Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.Visual Pathways: Set of cell bodies and nerve fibers conducting impulses from the eyes to the cerebral cortex. It includes the RETINA; OPTIC NERVE; optic tract; and geniculocalcarine tract.Refraction, Ocular: Refraction of LIGHT effected by the media of the EYE.Pattern Recognition, Visual: Mental process to visually perceive a critical number of facts (the pattern), such as characters, shapes, displays, or designs.Adaptation, Ocular: The adjustment of the eye to variations in the intensity of light. Light adaptation is the adjustment of the eye when the light threshold is increased; DARK ADAPTATION when the light is greatly reduced. (From Cline et al., Dictionary of Visual Science, 4th ed)Eyeglasses: A pair of ophthalmic lenses in a frame or mounting which is supported by the nose and ears. The purpose is to aid or improve vision. It does not include goggles or nonprescription sun glasses for which EYE PROTECTIVE DEVICES is available.Lens Implantation, Intraocular: Insertion of an artificial lens to replace the natural CRYSTALLINE LENS after CATARACT EXTRACTION or to supplement the natural lens which is left in place.Keratomileusis, Laser In Situ: A surgical procedure to correct MYOPIA by CORNEAL STROMA subtraction. It involves the use of a microkeratome to make a lamellar dissection of the CORNEA creating a flap with intact CORNEAL EPITHELIUM. After the flap is lifted, the underlying midstroma is reshaped with an EXCIMER LASER and the flap is returned to its original position.Retinal Pigments: Photosensitive protein complexes of varied light absorption properties which are expressed in the PHOTORECEPTOR CELLS. They are OPSINS conjugated with VITAMIN A-based chromophores. Chromophores capture photons of light, leading to the activation of opsins and a biochemical cascade that ultimately excites the photoreceptor cells.Halogens: A family of nonmetallic, generally electronegative, elements that form group 17 (formerly group VIIa) of the periodic table.Eye Hemorrhage: Intraocular hemorrhage from the vessels of various tissues of the eye.Keratoconus: A noninflammatory, usually bilateral protrusion of the cornea, the apex being displaced downward and nasally. It occurs most commonly in females at about puberty. The cause is unknown but hereditary factors may play a role. The -conus refers to the cone shape of the corneal protrusion. (From Dorland, 27th ed)Discrimination (Psychology): Differential response to different stimuli.Sensory Thresholds: The minimum amount of stimulus energy necessary to elicit a sensory response.Space Perception: The awareness of the spatial properties of objects; includes physical space.Accommodation, Ocular: The dioptric adjustment of the EYE (to attain maximal sharpness of retinal imagery for an object of regard) referring to the ability, to the mechanism, or to the process. Ocular accommodation is the effecting of refractive changes by changes in the shape of the CRYSTALLINE LENS. Loosely, it refers to ocular adjustments for VISION, OCULAR at various distances. (Cline et al., Dictionary of Visual Science, 4th ed)Vision, Low: Vision considered to be inferior to normal vision as represented by accepted standards of acuity, field of vision, or motility. Low vision generally refers to visual disorders that are caused by diseases that cannot be corrected by refraction (e.g., MACULAR DEGENERATION; RETINITIS PIGMENTOSA; DIABETIC RETINOPATHY, etc.).Vision, Binocular: The blending of separate images seen by each eye into one composite image.Ocular Physiological Phenomena: Processes and properties of the EYE as a whole or of any of its parts.Psychophysics: The science dealing with the correlation of the physical characteristics of a stimulus, e.g., frequency or intensity, with the response to the stimulus, in order to assess the psychologic factors involved in the relationship.Aberrometry: The use of an aberrometer to measure eye tissue imperfections or abnormalities based on the way light passes through the eye which affects the ability of the eye to focus properly.Cataract: Partial or complete opacity on or in the lens or capsule of one or both eyes, impairing vision or causing blindness. The many kinds of cataract are classified by their morphology (size, shape, location) or etiology (cause and time of occurrence). (Dorland, 27th ed)Computer Terminals: Input/output devices designed to receive data in an environment associated with the job to be performed, and capable of transmitting entries to, and obtaining output from, the system of which it is a part. (Computer Dictionary, 4th ed.)Amblyopia: A nonspecific term referring to impaired vision. Major subcategories include stimulus deprivation-induced amblyopia and toxic amblyopia. Stimulus deprivation-induced amblyopia is a developmental disorder of the visual cortex. A discrepancy between visual information received by the visual cortex from each eye results in abnormal cortical development. STRABISMUS and REFRACTIVE ERRORS may cause this condition. Toxic amblyopia is a disorder of the OPTIC NERVE which is associated with ALCOHOLISM, tobacco SMOKING, and other toxins and as an adverse effect of the use of some medications.Attention: Focusing on certain aspects of current experience to the exclusion of others. It is the act of heeding or taking notice or concentrating.Retina: The ten-layered nervous tissue membrane of the eye. It is continuous with the OPTIC NERVE and receives images of external objects and transmits visual impulses to the brain. Its outer surface is in contact with the CHOROID and the inner surface with the VITREOUS BODY. The outer-most layer is pigmented, whereas the inner nine layers are transparent.Psychomotor Performance: The coordination of a sensory or ideational (cognitive) process and a motor activity.Corneal Topography: The measurement of curvature and shape of the anterior surface of the cornea using techniques such as keratometry, keratoscopy, photokeratoscopy, profile photography, computer-assisted image processing and videokeratography. This measurement is often applied in the fitting of contact lenses and in diagnosing corneal diseases or corneal changes including keratoconus, which occur after keratotomy and keratoplasty.Macula Lutea: An oval area in the retina, 3 to 5 mm in diameter, usually located temporal to the posterior pole of the eye and slightly below the level of the optic disk. It is characterized by the presence of a yellow pigment diffusely permeating the inner layers, contains the fovea centralis in its center, and provides the best phototropic visual acuity. It is devoid of retinal blood vessels, except in its periphery, and receives nourishment from the choriocapillaris of the choroid. (From Cline et al., Dictionary of Visual Science, 4th ed)Astigmatism: Unequal curvature of the refractive surfaces of the eye. Thus a point source of light cannot be brought to a point focus on the retina but is spread over a more or less diffuse area. This results from the radius of curvature in one plane being longer or shorter than the radius at right angles to it. (Dorland, 27th ed)Optics and Photonics: A specialized field of physics and engineering involved in studying the behavior and properties of light and the technology of analyzing, generating, transmitting, and manipulating ELECTROMAGNETIC RADIATION in the visible, infrared, and ultraviolet range.Blindness: The inability to see or the loss or absence of perception of visual stimuli. This condition may be the result of EYE DISEASES; OPTIC NERVE DISEASES; OPTIC CHIASM diseases; or BRAIN DISEASES affecting the VISUAL PATHWAYS or OCCIPITAL LOBE.Motion Perception: The real or apparent movement of objects through the visual field.Fixation, Ocular: The positioning and accommodation of eyes that allows the image to be brought into place on the FOVEA CENTRALIS of each eye.Automobile Driving: The effect of environmental or physiological factors on the driver and driving ability. Included are driving fatigue, and the effect of drugs, disease, and physical disabilities on driving.Task Performance and Analysis: The detailed examination of observable activity or behavior associated with the execution or completion of a required function or unit of work.ReadingScattering, Radiation: The diversion of RADIATION (thermal, electromagnetic, or nuclear) from its original path as a result of interactions or collisions with atoms, molecules, or larger particles in the atmosphere or other media. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Myopia: A refractive error in which rays of light entering the EYE parallel to the optic axis are brought to a focus in front of the RETINA when accommodation (ACCOMMODATION, OCULAR) is relaxed. This results from an overly curved CORNEA or from the eyeball being too long from front to back. It is also called nearsightedness.Visually Impaired Persons: Persons with loss of vision such that there is an impact on activities of daily living.Orientation: Awareness of oneself in relation to time, place and person.Light: That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range.Visual Field Tests: Method of measuring and mapping the scope of vision, from central to peripheral of each eye.Decision Making, Computer-Assisted: Use of an interactive computer system designed to assist the physician or other health professional in choosing between certain relationships or variables for the purpose of making a diagnostic or therapeutic decision.Reaction Time: The time from the onset of a stimulus until a response is observed.Ocular Motility Disorders: Disorders that feature impairment of eye movements as a primary manifestation of disease. These conditions may be divided into infranuclear, nuclear, and supranuclear disorders. Diseases of the eye muscles or oculomotor cranial nerves (III, IV, and VI) are considered infranuclear. Nuclear disorders are caused by disease of the oculomotor, trochlear, or abducens nuclei in the BRAIN STEM. Supranuclear disorders are produced by dysfunction of higher order sensory and motor systems that control eye movements, including neural networks in the CEREBRAL CORTEX; BASAL GANGLIA; CEREBELLUM; and BRAIN STEM. Ocular torticollis refers to a head tilt that is caused by an ocular misalignment. Opsoclonus refers to rapid, conjugate oscillations of the eyes in multiple directions, which may occur as a parainfectious or paraneoplastic condition (e.g., OPSOCLONUS-MYOCLONUS SYNDROME). (Adams et al., Principles of Neurology, 6th ed, p240)Lutein: A xanthophyll found in the major LIGHT-HARVESTING PROTEIN COMPLEXES of plants. Dietary lutein accumulates in the MACULA LUTEA.Lasers, Excimer: Gas lasers with excited dimers (i.e., excimers) as the active medium. The most commonly used are rare gas monohalides (e.g., argon fluoride, xenon chloride). Their principal emission wavelengths are in the ultraviolet range and depend on the monohalide used (e.g., 193 nm for ArF, 308 nm for Xe Cl). These lasers are operated in pulsed and Q-switched modes and used in photoablative decomposition involving actual removal of tissue. (UMDNS, 2005)Xanthophylls: Oxygenated forms of carotenoids. They are usually derived from alpha and beta carotene.Postoperative Period: The period following a surgical operation.Athletic Performance: Carrying out of specific physical routines or procedures by one who is trained or skilled in physical activity. Performance is influenced by a combination of physiological, psychological, and socio-cultural factors.Neuropsychological Tests: Tests designed to assess neurological function associated with certain behaviors. They are used in diagnosing brain dysfunction or damage and central nervous system disorders or injury.Brain Mapping: Imaging techniques used to colocalize sites of brain functions or physiological activity with brain structures.Magnetic Resonance Imaging: Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.Reproducibility of Results: The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.Cues: Signals for an action; that specific portion of a perceptual field or pattern of stimuli to which a subject has learned to respond.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Cognition: Intellectual or mental process whereby an organism obtains knowledge.Eye Movements: Voluntary or reflex-controlled movements of the eye.Analysis of Variance: A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.Algorithms: A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.Sensitivity and Specificity: Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)Aging: The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.Learning: Relatively permanent change in behavior that is the result of past experience or practice. The concept includes the acquisition of knowledge.Memory: Complex mental function having four distinct phases: (1) memorizing or learning, (2) retention, (3) recall, and (4) recognition. Clinically, it is usually subdivided into immediate, recent, and remote memory.Functional Laterality: Behavioral manifestations of cerebral dominance in which there is preferential use and superior functioning of either the left or the right side, as in the preferred use of the right hand or right foot.Form Perception: The sensory discrimination of a pattern shape or outline.Saccades: An abrupt voluntary shift in ocular fixation from one point to another, as occurs in reading.Memory, Short-Term: Remembrance of information for a few seconds to hours.Follow-Up Studies: Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.Vision, Monocular: Images seen by one eye.Models, Neurological: Theoretical representations that simulate the behavior or activity of the neurological system, processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.Sensory Deprivation: The absence or restriction of the usual external sensory stimuli to which the individual responds.Image Processing, Computer-Assisted: A technique of inputting two-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer.Employee Performance Appraisal: The assessment of the functioning of an employee in relation to work.Macaca mulatta: A species of the genus MACACA inhabiting India, China, and other parts of Asia. The species is used extensively in biomedical research and adapts very well to living with humans.Hemianopsia: Partial or complete loss of vision in one half of the visual field(s) of one or both eyes. Subtypes include altitudinal hemianopsia, characterized by a visual defect above or below the horizontal meridian of the visual field. Homonymous hemianopsia refers to a visual defect that affects both eyes equally, and occurs either to the left or right of the midline of the visual field. Binasal hemianopsia consists of loss of vision in the nasal hemifields of both eyes. Bitemporal hemianopsia is the bilateral loss of vision in the temporal fields. Quadrantanopsia refers to loss of vision in one quarter of the visual field in one or both eyes.Brain: The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.Perceptual Disorders: Cognitive disorders characterized by an impaired ability to perceive the nature of objects or concepts through use of the sense organs. These include spatial neglect syndromes, where an individual does not attend to visual, auditory, or sensory stimuli presented from one side of the body.Cognition Disorders: Disturbances in mental processes related to learning, thinking, reasoning, and judgment.Animal Feed: Foodstuff used especially for domestic and laboratory animals, or livestock.Neurons: The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM.Discrimination Learning: Learning that is manifested in the ability to respond differentially to various stimuli.Recognition (Psychology): The knowledge or perception that someone or something present has been previously encountered.Parietal Lobe: Upper central part of the cerebral hemisphere. It is located posterior to central sulcus, anterior to the OCCIPITAL LOBE, and superior to the TEMPORAL LOBES.Acoustic Stimulation: Use of sound to elicit a response in the nervous system.Electroencephalography: Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain.Auditory Perception: The process whereby auditory stimuli are selected, organized, and interpreted by the organism.Geniculate Bodies: Part of the DIENCEPHALON inferior to the caudal end of the dorsal THALAMUS. Includes the lateral geniculate body which relays visual impulses from the OPTIC TRACT to the calcarine cortex, and the medial geniculate body which relays auditory impulses from the lateral lemniscus to the AUDITORY CORTEX.Perceptual Masking: The interference of one perceptual stimulus with another causing a decrease or lessening in perceptual effectiveness.Computer Simulation: Computer-based representation of physical systems and phenomena such as chemical processes.Depth Perception: Perception of three-dimensionality.Movement: The act, process, or result of passing from one place or position to another. It differs from LOCOMOTION in that locomotion is restricted to the passing of the whole body from one place to another, while movement encompasses both locomotion but also a change of the position of the whole body or any of its parts. Movement may be used with reference to humans, vertebrate and invertebrate animals, and microorganisms. Differentiate also from MOTOR ACTIVITY, movement associated with behavior.Scotoma: A localized defect in the visual field bordered by an area of normal vision. This occurs with a variety of EYE DISEASES (e.g., RETINAL DISEASES and GLAUCOMA); OPTIC NERVE DISEASES, and other conditions.Motor Skills: Performance of complex motor acts.Behavior, Animal: The observable response an animal makes to any situation.Cats: The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801)Superior Colliculi: The anterior pair of the quadrigeminal bodies which coordinate the general behavioral orienting responses to visual stimuli, such as whole-body turning, and reaching.Temporal Lobe: Lower lateral part of the cerebral hemisphere responsible for auditory, olfactory, and semantic processing. It is located inferior to the lateral fissure and anterior to the OCCIPITAL LOBE.Feedback, Sensory: A mechanism of communicating one's own sensory system information about a task, movement or skill.Signal Detection, Psychological: Psychophysical technique that permits the estimation of the bias of the observer as well as detectability of the signal (i.e., stimulus) in any sensory modality. (From APA, Thesaurus of Psychological Index Terms, 8th ed.)Adaptation, Physiological: The non-genetic biological changes of an organism in response to challenges in its ENVIRONMENT.Random Allocation: A process involving chance used in therapeutic trials or other research endeavor for allocating experimental subjects, human or animal, between treatment and control groups, or among treatment groups. It may also apply to experiments on inanimate objects.Dominance, Ocular: The functional superiority and preferential use of one eye over the other. The term is usually applied to superiority in sighting (VISUAL PERCEPTION) or motor task but not difference in VISUAL ACUITY or dysfunction of one of the eyes. Ocular dominance can be modified by visual input and NEUROTROPHIC FACTORS.Color: The visually perceived property of objects created by absorption or reflection of specific wavelengths of light.Lighting: The illumination of an environment and the arrangement of lights to achieve an effect or optimal visibility. Its application is in domestic or in public settings and in medical and non-medical environments.Equipment Design: Methods of creating machines and devices.Treatment Outcome: Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.ROC Curve: A graphic means for assessing the ability of a screening test to discriminate between healthy and diseased persons; may also be used in other studies, e.g., distinguishing stimuli responses as to a faint stimuli or nonstimuli.Illusions: The misinterpretation of a real external, sensory experience.Prospective Studies: Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.Macaca: A genus of the subfamily CERCOPITHECINAE, family CERCOPITHECIDAE, consisting of 16 species inhabiting forests of Africa, Asia, and the islands of Borneo, Philippines, and Celebes.Feedback: A mechanism of communication within a system in that the input signal generates an output response which returns to influence the continued activity or productivity of that system.Face: The anterior portion of the head that includes the skin, muscles, and structures of the forehead, eyes, nose, mouth, cheeks, and jaw.Fovea Centralis: An area approximately 1.5 millimeters in diameter within the macula lutea where the retina thins out greatly because of the oblique shifting of all layers except the pigment epithelium layer. It includes the sloping walls of the fovea (clivus) and contains a few rods in its periphery. In its center (foveola) are the cones most adapted to yield high visual acuity, each cone being connected to only one ganglion cell. (Cline et al., Dictionary of Visual Science, 4th ed)Optical Illusions: An illusion of vision usually affecting spatial relations.Electroretinography: Recording of electric potentials in the retina after stimulation by light.Visual Prosthesis: Artificial device such as an externally-worn camera attached to a stimulator on the RETINA, OPTIC NERVE, or VISUAL CORTEX, intended to restore or amplify vision.Field Dependence-Independence: The ability to respond to segments of the perceptual experience rather than to the whole.Predictive Value of Tests: In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.Educational Measurement: The assessing of academic or educational achievement. It includes all aspects of testing and test construction.Chromatography, High Pressure Liquid: Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed.Size Perception: The sensory interpretation of the dimensions of objects.Glaucoma: An ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (Dictionary of Visual Science, 4th ed)Data Interpretation, Statistical: Application of statistical procedures to analyze specific observed or assumed facts from a particular study.Animal Nutritional Physiological Phenomena: Nutritional physiology of animals.Motor Activity: The physical activity of a human or an animal as a behavioral phenomenon.Software: Sequential operating programs and data which instruct the functioning of a digital computer.Mental Recall: The process whereby a representation of past experience is elicited.Evoked Potentials: Electrical responses recorded from nerve, muscle, SENSORY RECEPTOR, or area of the CENTRAL NERVOUS SYSTEM following stimulation. They range from less than a microvolt to several microvolts. The evoked potential can be auditory (EVOKED POTENTIALS, AUDITORY), somatosensory (EVOKED POTENTIALS, SOMATOSENSORY), visual (EVOKED POTENTIALS, VISUAL), or motor (EVOKED POTENTIALS, MOTOR), or other modalities that have been reported.Weight Gain: Increase in BODY WEIGHT over existing weight.Memory Disorders: Disturbances in registering an impression, in the retention of an acquired impression, or in the recall of an impression. Memory impairments are associated with DEMENTIA; CRANIOCEREBRAL TRAUMA; ENCEPHALITIS; ALCOHOLISM (see also ALCOHOL AMNESTIC DISORDER); SCHIZOPHRENIA; and other conditions.Nerve Net: A meshlike structure composed of interconnecting nerve cells that are separated at the synaptic junction or joined to one another by cytoplasmic processes. In invertebrates, for example, the nerve net allows nerve impulses to spread over a wide area of the net because synapses can pass information in any direction.Flicker Fusion: The point or frequency at which all flicker of an intermittent light stimulus disappears.Strabismus: Misalignment of the visual axes of the eyes. In comitant strabismus the degree of ocular misalignment does not vary with the direction of gaze. In noncomitant strabismus the degree of misalignment varies depending on direction of gaze or which eye is fixating on the target. (Miller, Walsh & Hoyt's Clinical Neuro-Ophthalmology, 4th ed, p641)Neuronal Plasticity: The capacity of the NERVOUS SYSTEM to change its reactivity as the result of successive activations.Practice (Psychology): Performance of an act one or more times, with a view to its fixation or improvement; any performance of an act or behavior that leads to learning.Models, Statistical: Statistical formulations or analyses which, when applied to data and found to fit the data, are then used to verify the assumptions and parameters used in the analysis. Examples of statistical models are the linear model, binomial model, polynomial model, two-parameter model, etc.Retrospective Studies: Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.Cerebral Cortex: The thin layer of GRAY MATTER on the surface of the CEREBRAL HEMISPHERES that develops from the TELENCEPHALON and folds into gyri and sulchi. It reaches its highest development in humans and is responsible for intellectual faculties and higher mental functions.Animal Husbandry: The science of breeding, feeding and care of domestic animals; includes housing and nutrition.Swine: Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).Rotation: Motion of an object in which either one or more points on a line are fixed. It is also the motion of a particle about a fixed point. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Clinical Competence: The capability to perform acceptably those duties directly related to patient care.Distance Perception: The act of knowing or the recognition of a distance by recollective thought, or by means of a sensory process which is under the influence of set and of prior experience.Spatial Behavior: Reactions of an individual or groups of individuals with relation to the immediate surrounding area including the animate or inanimate objects within that area.Touch: Sensation of making physical contact with objects, animate or inanimate. Tactile stimuli are detected by MECHANORECEPTORS in the skin and mucous membranes.Cataract Extraction: The removal of a cataractous CRYSTALLINE LENS from the eye.Biomechanical Phenomena: The properties, processes, and behavior of biological systems under the action of mechanical forces.Color Vision: Function of the human eye that is used in bright illumination or in daylight (at photopic intensities). Photopic vision is performed by the three types of RETINAL CONE PHOTORECEPTORS with varied peak absorption wavelengths in the color spectrum (from violet to red, 400 - 700 nm).Models, Psychological: Theoretical representations that simulate psychological processes and/or social processes. These include the use of mathematical equations, computers, and other electronic equipment.Weaning: Permanent deprivation of breast milk and commencement of nourishment with other food. (From Stedman, 25th ed)Linear Models: Statistical models in which the value of a parameter for a given value of a factor is assumed to be equal to a + bx, where a and b are constants. The models predict a linear regression.Phosphenes: A subjective visual sensation with the eyes closed and in the absence of light. Phosphenes can be spontaneous, or induced by chemical, electrical, or mechanical (pressure) stimuli which cause the visual field to light up without optical inputs.Neural Pathways: Neural tracts connecting one part of the nervous system with another.Reference Values: The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.Regression Analysis: Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable.Flight, Animal: The use of wings or wing-like appendages to remain aloft and move through the air.Frontal Lobe: The part of the cerebral hemisphere anterior to the central sulcus, and anterior and superior to the lateral sulcus.Dominance, Cerebral: Dominance of one cerebral hemisphere over the other in cerebral functions.Vision Screening: Application of tests and examinations to identify visual defects or vision disorders occurring in specific populations, as in school children, the elderly, etc. It is differentiated from VISION TESTS, which are given to evaluate/measure individual visual performance not related to a specific population.Judgment: The process of discovering or asserting an objective or intrinsic relation between two objects or concepts; a faculty or power that enables a person to make judgments; the process of bringing to light and asserting the implicit meaning of a concept; a critical evaluation of a person or situation.Models, Biological: Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.Action Potentials: Abrupt changes in the membrane potential that sweep along the CELL MEMBRANE of excitable cells in response to excitation stimuli.Questionnaires: Predetermined sets of questions used to collect data - clinical data, social status, occupational group, etc. The term is often applied to a self-completed survey instrument.Retinal Ganglion Cells: Neurons of the innermost layer of the retina, the internal plexiform layer. They are of variable sizes and shapes, and their axons project via the OPTIC NERVE to the brain. A small subset of these cells act as photoreceptors with projections to the SUPRACHIASMATIC NUCLEUS, the center for regulating CIRCADIAN RHYTHM.Video Recording: The storing or preserving of video signals for television to be played back later via a transmitter or receiver. Recordings may be made on magnetic tape or discs (VIDEODISC RECORDING).Executive Function: A set of cognitive functions that controls complex, goal-directed thought and behavior. Executive function involves multiple domains, such as CONCEPT FORMATION, goal management, cognitive flexibility, INHIBITION control, and WORKING MEMORY. Impaired executive function is seen in a range of disorders, e.g., SCHIZOPHRENIA; and ADHD.Postural Balance: A POSTURE in which an ideal body mass distribution is achieved. Postural balance provides the body carriage stability and conditions for normal functions in stationary position or in movement, such as sitting, standing, or walking.Choice Behavior: The act of making a selection among two or more alternatives, usually after a period of deliberation.Cattle: Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.Hand: The distal part of the arm beyond the wrist in humans and primates, that includes the palm, fingers, and thumb.Signal Processing, Computer-Assisted: Computer-assisted processing of electric, ultrasonic, or electronic signals to interpret function and activity.Dark Adaptation: Adjustment of the eyes under conditions of low light. The sensitivity of the eye to light is increased during dark adaptation.Pain Measurement: Scales, questionnaires, tests, and other methods used to assess pain severity and duration in patients or experimental animals to aid in diagnosis, therapy, and physiological studies.Age Factors: Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.User-Computer Interface: The portion of an interactive computer program that issues messages to and receives commands from a user.Psychometrics: Assessment of psychological variables by the application of mathematical procedures.Retinal Cone Photoreceptor Cells: Photosensitive afferent neurons located primarily within the FOVEA CENTRALIS of the MACULA LUTEA. There are three major types of cone cells (red, blue, and green) whose photopigments have different spectral sensitivity curves. Retinal cone cells operate in daylight vision (at photopic intensities) providing color recognition and central visual acuity.Awareness: The act of "taking account" of an object or state of affairs. It does not imply assessment of, nor attention to the qualities or nature of the object.Image Interpretation, Computer-Assisted: Methods developed to aid in the interpretation of ultrasound, radiographic images, etc., for diagnosis of disease.Time Perception: The ability to estimate periods of time lapsed or duration of time.Agnosia: Loss of the ability to comprehend the meaning or recognize the importance of various forms of stimulation that cannot be attributed to impairment of a primary sensory modality. Tactile agnosia is characterized by an inability to perceive the shape and nature of an object by touch alone, despite unimpaired sensation to light touch, position, and other primary sensory modalities.Optic Nerve Diseases: Conditions which produce injury or dysfunction of the second cranial or optic nerve, which is generally considered a component of the central nervous system. Damage to optic nerve fibers may occur at or near their origin in the retina, at the optic disk, or in the nerve, optic chiasm, optic tract, or lateral geniculate nuclei. Clinical manifestations may include decreased visual acuity and contrast sensitivity, impaired color vision, and an afferent pupillary defect.
"The influence of dietary lutein and zeaxanthin on visual performance". J. Food Sci. 75 (1): R24-9. doi:10.1111/j.1750-3841.2009 ... and notes a decrease in sensitivity to glare. Photophobia may also affect patients' socioeconomic status by limiting their ... reviews studies of effects of consuming Lutein and Zeaxanthin on visual performance, ... Photophobia can be caused by an increased response to light starting at any step in the visual system, such as: Too much light ...
"Where Does The Glare Come From?" (NHTSA glare response + white paper on headlamp performance, glare, and regulation)" (PDF). ... Formal research found, at best, a small improvement in visual acuity with yellow rather than white headlights, and ... NHTSA headlamp glare docket *^ "What Is Glare? p. 24". Webcitation.org. Archived from the original (PDF) on 29 December 2010. ... "Headlamp industry veteran engineer's chronology & commentary on headlamp performance, glare & regulation".. *^ Guyette, James E ...
The SR1911 also has a visual inspection port which allows for visual confirmation that the chamber is loaded. Design-wise, it ... Constructed from low-glare stainless steel. SR1911 Commander (SR1911CMD): has a shorter overall length of 7.75", shorter barrel ... Features such as an oversized ejection port and an extended magazine release enhance the performance of the weapon as well. ... Also constructed from low-glare stainless steel. SR1911 Lightweight Commander (SR1911LWCMD): Same overall length of 7.75", ...
Corvair Fitch Sprint
Racing stripes: Run down front fender seams, half on trunk lid and half on fender top for the driver to use as visual reference ... which produced similar performance at a lower cost. Full width stone guard: Chrome plated wire mesh screen hinged at bumper, 2 ... Reduces possibility of glare and improves finish of interior by matching steering wheel or interior. Dark vinyl covering: On ... Racing stripes: Runs down front fender seams, half on trunk lid and half on fender top for the driver to use as visual ...
User performance test methods for electronic visual displays Part 305: Optical laboratory test methods for electronic visual ... Part 7: (1998, deprecated) Display requirements with reflections This part specifies methods of measurement of glare and ... Introduction to electronic visual display requirements Part 302: Terminology for electronic visual displays Part 303: ... Part 2: (1993) Guidance on task requirements This part deals with the design of tasks and jobs involving work with visual ...
Glare reduction. Glare, particularly from the front sight, can be a significant problem with iron sights. The glare from ... In the tactical environment, where targets aren't moving across the visual field as quickly, sights do have a role. For many, a ... They found that when the target was perceived as larger, performance increased. ... Even a thin layer of mud or dirt applied to the sight will help kill the glare, as long as the coating is thin and consistent ...
Ivanpah Solar Power Facility
Contracted power-delivery performance of 640 GW·h/year from Units 1 and 3 and 336 GW·h from Unit 2 was met by 2017, following ... Another potential issue is the effect of mirror glare on airplane pilots. Additionally, "the power towers have 'receiver units ... damage to visual resources, and impacts on important desert species. To conserve scarce desert water, LPT 550 uses air-cooling ... Performance improved in 2015 to about 650 GW·h. However, NRG Energy said in its November quarterly report that Ivanpah would ...
Gloss (paint) Visual appearance Drawdown card Ingersoll, L.R. (1914) A means to measure the glare of paper, Electr. World, 63, ... In order to maintain the performance and linearity of the glossmeter it is recommended to use a checking standard tile. This ... who in 1914 developed a means to measure the glare of paper. The Ingersoll "Glarimeter", the earliest known instrument ... which provided closer correlation to gloss ratings assigned by visual evaluation. Jones' glossmeter used a geometric ...
As a result, K.A. Bergman supervised Edwall's performance.. Filming. The film was shot between 4 October 1961 and 17 ... and praising its visual style as "one of rigorous simplicity." In his 2015 Movie Guide, Leonard Maltin gave the film three ... "casts a gloom-tinged glare upon the human condition with chilling clarity", but found the film "bleak and cold in its abstract ... that the performances were realistic, and Bergman's struggles with faith were relevant to everyone. ...
The most common adverse visual effects from multifocal IOLs include glare, halos, and a loss of contrast sensitivity, in low ... Carson D, Hill WE, Hong X, Karakelle M (2014). "Optical bench performance of AcrySof(®) IQ ReSTOR(®), AT LISA(®) tri, and ... "Comparative performance of intraocular lenses in eyes with cataract and uveitis". Journal of Cataract and Refractive Surgery. ... eyes treated with hydrophobic acrylic IOLs were over 2 times more likely to have a best corrected visual acuity of 20/40 or ...
San Marco Altarpiece
and even sponsored the Feste de' Magi, an extravagant performance of the Magi's journey from Herod's Palace in Jerusalem to the ... His positioning, as written above, helps contribute to the viewer's visual path towards the center of the painting. If one ... As aforementioned, the saints in the foreground mimic the viewer's glare towards the vanishing point, thus marking the viewers ... Angelico draws the viewer into the painting as if they were an audience watching a performance. At the same time however, the ...
The Unified Glare Rating (UGR), the Visual Comfort Probability, and the Daylight Glare Index are some of the most well-known ... "Low-Light Performance Calculator".. *^ "How to use a lux meter (Australian recommendation)" (PDF). Sustainability Victoria ( ... the luminance of the glare source, the solid angle of the glare source, the background luminance, and the position of the glare ... The most important functions are as a holder for the light source, to provide directed light and to avoid visual glare. Some ...
All for You Tour
It's most infamous performance is thought to be the highly controversial rendition of "Would You Mind", where Jackson selected ... Gone is the 'girl next door' version of Janet-the coy, cutesy, smiling little girl who managed to avoid the glare of the ... While Madonna offered a true visual feast, the 19,000-plus seemed to be satiated with just the art that was Jackson's ... Additionally, Jackson's planned performance at the MTV Europe Music Awards 2001, on November 8, 2001, in Frankfurt, Germany, ...
Legally blind Rachael Scdoris and her "visual interpreter" Paul Ellering are in last place, and are en route from Grayling to ... McKellar cited concerns about his team's performance and their well being. McKellar was the Red Lantern in last place.(pdf) ... and the glare off the snow was blinding during the day. Finger Lake: Melanie Gould arrived first at Finger Lake on March 8 at 5 ... Other notable crashes on the way to Rainy Pass: "Visual interpreter" Paul Ellering lost two-way communication with Scdoris when ...
... as well as the size of the visual field, the susceptibility of the individual to light and glare, and poor depth perception ... After one month performance "improved somewhat." Infant's eyes don't have the ability to accommodate. The pediatricians are ... For electronic visual sensors, see Visual sensor network.. The visual system is the part of the central nervous system which ... Visual system. The visual system includes the eyes, the connecting pathways through to the visual cortex and other parts of the ...
... gas and other fuzzy objects Glare Maestro - hardware support for rendering lens flare and glare textures "MAESTRO-2G" ... for generating physical light reflection and shadow properties for various materials which are embedded on the visual processor ... procedural texturing reduce contents size and memory bandwidth requirements an by that improves overall application performance ... and removes any notion about previously supported Glare Maestro feature. "Press Release: ULTRAY2000 announcement". Digital ...
"High-Performance, Single-Layer Antireflective Optical Coatings Comprising Mesoporous Silica Nanoparticles".. *^ "Nanostructured ... Examples include anti-glare coatings on corrective lenses and camera lens elements, and antireflective coatings on solar cells. ... producing a slight increase in contrast and visual acuity. ... Such lenses are often said to reduce glare, but the reduction ... This is also true for thicker coating layers (3λ/4, 5λ/4, etc.), however the anti-reflective performance is worse in this case ...
Glare reduction: Glare arises due to multiple scattering of light inside the camera's body and lens optics and reduces image ... "High Performance Imaging Using Large Camera Arrays", ACM Transactions on Graphics (Proc. SIGGRAPH), Vol. 24, No. 3, pp. 765-776 ... In Computation Models of Visual Processing, M. Landy and J.A. Movshon, eds., MIT Press, Cambridge, 1991, pp. 3-20. Arvo, J. ( ... one can classify and remove glare artifacts. In ray-space, glare behaves as high frequency noise and can be reduced by outlier ...
... usually results in better visual correction and fewer headaches and visual discomfort. Another criticism of over the counter ... Trivex is a urethane based pre-polymer. PPG named the material Trivex because of its three main performance ... At night, anti-reflective coatings help to reduce headlight glare from oncoming cars, street lamps and heavily lit or neon ... Contact lens Dioptre Eyeglass prescription Lorgnette Monocle Photochromic lens Pince-nez Visual acuity "NHS Optical Benefits in ...
This kind of glare is a particular instance of disability glare, called veiling glare. (This is not the same as loss of ... Such yellow light sources also have significantly less visual skyglow impact, so reduce visual sky brightness and improve star ... Therefore, the overall performance of existing systems could be improved more by reducing the number of luminaires than by ... Glare light scattering in the eye causes loss of contrast and leads to unsafe driving conditions, much like the glare on a ...
There are technological aspects of window design where window angles can be calculated to minimize interior glare and reduce ... The replacement of natural light with artificial light also decreases task performance under certain conditions. Hypertension ... Hypertension Light pollution Light sensitivity Seasonal affective disorder World energy resources and consumption Visual ...
providing a visual connection to the outdoor environment to interior occupants. sustainable building - passive solar heating, ... modern transparent and/or translucent glazing can be utilized to avoid glare, aid in capturing sunlight at low angles and ... Depending on the geographic region, optimal U-factor and SHGC performance will vary. In the sunny southern climate zones, a ... NFRC - rating for visible transmittance U-factor - expresses the heat loss performance of any building assembly. SHGC-Solar ...
The goal of this exercise is to quantify the building's overall thermal performance. The audit may also assess the efficiency, ... This inspection is based on visual verifications, study of installed equipment and operating data and detailed analysis of ... and a walk-through of the facility to become familiar with the building operation and to identify any glaring areas of energy ... An important issue in benchmarking is the use of performance indexes to characterize the building. These indexes can be: ...
In visual bombing situations the revised 36-plane box eliminated the lowest squadron to lessen the possibility. Although the 36 ... This aided gunners on the higher aircraft in seeing lower aircraft without being blinded by glare. In the front elevation the ... This resulted in the rear formations lagging behind which impacted both defensive tactics and bombing performance. The wing box ... bringing about a need for a compact 36-plane group formation to optimize bombing performance in adverse weather conditions. ...
Their performances have ranged from their acclaimed duet concerts to appearances as guest soloists with the Köln, Atlanta and ... Rudolph continues to also create visual art - painting, drawing, photography ‑ and to write. In 2006, his rhythm repository and ... Adam Rudolph's Moving Pictures (2017). Glare of the Tiger. Meta Records. Maulawi (1973). Maulawi. Strata East. Shadowfax (1977 ... From an early age he was exposed to the live music performances of the great blues and improvising artists who lived nearby. As ...
Carpenter, James M.; Glare, Travis R. "Misidentification of Vespula alascensis as V. vulgaris in North America (Hymenoptera: ... Esch, H (1976). "Body temperature and flight performance of honey bees in a servomechanically controlled wind tunnel". Journal ... "Visual sensitivity and foraging in social wasps". Insectes Sociaux. 5 (2): 159-169. doi:10.1007/bf02224066. Spradbery, J.P ( ...
Surinam Airways Flight 764
Because of the unreliability of the ILS signal, the aircraft descended too low, triggering several audible and visual warning ... but was forced to retire early as he could not reach his former level of performance due to a fractured vertebra. In 2005, ... That as a result of the captain's glaring carelessness and recklessness the aircraft was flown below the published minimum ... and also descended below the minimum altitude allowed for both the VOR/DME and ILS procedures without positive visual contact ...
Artificial intelligence for video surveillance
Its ability to spot a trespasser in the distance or in rain or glare is superior to humans' ability to do so. This type of A.I ... Vehicles driving the wrong way into a one-way driveway would also typify the type of event that has a strong visual signature ... Such multi-tasking has been shown to defocus human attention and performance. A.I.s have the ability to handle such data. For ... Conditions of glare, partial obscuration, rain, snow, fog, and darkness all compound the problem. Even when a human is directed ...
John Braham (RAF officer)
The difficulties of night fighting was evident in the performance of the night-fighter squadrons. One Fairey Battle was shot ... Approaching from slightly below their target, Braham followed his radar operator's instructions until a visual sighting had ... some other Blenheims crashed after being caught in the glare of search lights at low-level and return-fire from German bombers ...
Lighting engineers for years have had to contend with glare, the visual discomfort caused by direct lighting. They developed ... The performance of sound masking as a privacy tool is determined by the proper setting of the system level and spectrum ( ... They then developed Visual Comfort Probability. High values of comfort imply more diffuse lighting; the light comes from many ... For "prose tasks" it was found that speech caused a greater performance decrease than nonverbal noises. In another study the ...
Wikipedia talk:Manual of Style
Connors' finest performance was in 1991." The University of Sussex guideline states: "...a name ending in s takes only an ... by itself for visual indentation).. However, a huge pile of drama has erupted at WT:MOSMATH#Indenting for no explicable reason ... Rationale: MoS is very close to "feature complete" after 16+ years, but this is one of the most glaring omissions (not found at ... Connors' finest performance was in 1991.". Re (1): There is no one way only. Re (2): It depends on how someone pronounces it. ...
A police officer ordinarily made a visual assessment before guiding fans to other pens. However, on the day of the disaster ... The error staring them in the face was too glaring. It obviously wasn't a silly mistake; nor was it a simple oversight. Nobody ... Nor do I consider that there is any justification for setting up any further inquiry into the performance of the emergency and ... Lord Taylor noted with regard to the performance of the senior police officers in command that "...neither their handling of ...
Carpenter, James M.; Glare, Travis R. "Misidentification of Vespula alascensis as V. vulgaris in North America (Hymenoptera: ... Blackith, R.E. (1958). "Visual sensitivity and foraging in social wasps". Insectes Sociaux. 5 (2): 159-169. doi:10.1007/ ... Esch, H (1976). "Body temperature and flight performance of honey bees in a servomechanically controlled wind tunnel". Journal ...
Methods of detecting exoplanets
Optical Modeling and Performance Predictions VII. Optical Modeling and Performance Predictions VII. 9577. p. 957703. doi: ... If a planet crosses (transits) in front of its parent star's disk, then the observed visual brightness of the star drops by a ... In addition to the intrinsic difficulty of detecting such a faint light source, the light from the parent star causes a glare ... and what little light comes from them tends to be lost in the glare from their parent star. So in general, it is very difficult ...
Emergency vehicle lighting
Glare - A bright light source in a person's field of view can reduce their ability to see other objects. The effect may be ... Emergency vehicle lighting is one or more visual warning lights fitted to a vehicle for use when the driver wishes to convey to ... As a fire brigade vehicle.This Includes a vehicle used by senior fire officers in the performance of their duty as such officer ... The study distinguished between 'disability glare', where a driver may be temporarily blinded and unable to see hazards in the ...
Կատարակտ - Վիքիպեդիա՝ ազատ հանրագիտարան
Barker FM (August 2010). "Dietary supplementation: effects on visual performance and occurrence of AMD and cataracts". Curr. ... տեսողության վնասվածքներ, Glare? և diplopia?. Վնասում է. մարդ, կաթնասուններ, սողուններ, թռչուններ, Ողնաշարավորներ և ձկներ. ... "Visual impairment and blindness Fact Sheet N°282". August 2014. Archived from the original on 12 May 2015. Retrieved 23 May ... GLOBAL DATA ON VISUAL IMPAIRMENTS 2010 (PDF). WHO. 2012. p. 6. Archived (PDF) from the original on 2015-03-31. ...
Gallucci, Nicolas (2013). Sport Psychology: Performance Enhancement, Performance Inhibition, Individuals and Teams. p. 139.. ... Lack of visibility due to windshield design or sun glare. *Distraction by scenery, a sexually attractive person or sexually ... Examples include driver behavior, visual and auditory acuity, decision-making ability, and reaction speed. ... The safety performance of roadways is almost always reported as a rate. That is, some measure of harm (deaths, injuries, or ...
Visual signals where light goes more or less directly from the source to the human eye, to convey a message or meaning ... Research has been done to improve LEDs for mining, to reduce glare and to increase illumination, reducing risk of injury to the ... Temperature dependence: LED performance largely depends on the ambient temperature of the operating environment - or thermal ... Armin, Ardalan; Meredith, Paul (October 2018). "LED technology breaks performance barrier". Nature. 562 (7726): 197. doi: ...
Johnson, W. G. (1974). "Effect of cue prominence and subject weight on human food-directed performance". Journal of Personality ... serving aids can act as visual cues or cognitive shortcuts that inform us of when to stop serving, eating, or drinking. ... extant literature suggests that harsh or glaring lighting promotes eating faster, whereas soft or warm lighting increases ... Ip, K. (2011). The effects of stereotype threat on the eating behaviours and intellectual performance of overweight and obese ...
Computer vision syndrome
"Macular Carotenoid Supplementation Improves Visual Performance, Sleep Quality, and Adverse Physical Symptoms in Those with High ... These symptoms can be further aggravated by improper lighting conditions (i.e. glare, strong blue-spectrum backlights,[ ... Visual snow. References. *^ Porcar, E.; Pons, A. M.; Lorente, A. (2016). "Visual and ocular effects from the use of flat- ... actively measure the blinking rate of the user and notify the user via visual/audial alert. The effectiveness of real-time ...
Visual signals where light goes more or less directly from the source to the human eye, to convey a message or meaning ... Research has been done to improve LEDs for mining, to reduce glare and to increase illumination, reducing risk of injury to the ... Temperature dependence: LED performance largely depends on the ambient temperature of the operating environment - or thermal ... Illumination where light is reflected from objects to give visual response of these objects ...
The Water Diviner
... but he's rescued by a strong performance from himself in the leading role." On Metacritic, the film has a score of 50 out ... "glaring omission" in the film, that being the lack of any mention of the Armenian Genocide. ... Best Visual Effects David Booth Nominated Prue Fletcher Nominated Marc Varisco Nominated ...
Large-screen television technology
Rear-projection is not subject to glare. Disadvantages. *Rear-projection televisions are much bulkier than flat-panel ... This can be mitigated by the use of a matrix of LEDs as the illuminator to provide nearly true black performance. ... The Rainbow Effect: This is an unwanted visual artifact that is described as flashes of colored light seen when the viewer ... LCDs reflect very little light, allowing them to maintain contrast levels in well-lit rooms and not be affected by glare. ...
a b Windows and Classrooms: A Study of Student Performance and the Indoor Environment, Technical Report, California Energy ... Light levels, glare, mood, and color rendition are affected by reflectance of surfaces. Acoustics are affected by the ... Lack of acoustic separation and claims of visual distraction made many of these schools unpopular. Many were built during ... An auditorium may serve as a performance space or a large instructional venue such as a lecture hall. It may or may not have a ...
Hemeralopia-Reduced visual capacity in bright light. Colloquially, day-blindness.. *Nystagmus-This term is used variously to ... Poor spatial performance of the precision optical servomechanism of the eyes at nominal illumination levels without any ... "Eyewear: Controlling glare inside and outside". The Achromatopsia Clinic. Low Vision Centers of Indiana. Retrieved 10 May 2018 ... Visual acuity and stability of the eye motions generally improve during the first 6-7 years of life (but remain near 20/200). ...
The sensor, however, has nonidealities that limit its performance. Image quality assessment methods. Image quality can be ... Lens flare, including "veiling glare" is stray light in lenses and optical systems caused by reflections between lens elements ... Sheikh, Hamid Rahim; Bovik, Alan C. (February 2006). "Image Information and Visual Quality". IEEE Transactions on Image ... Since visual perception can be affected by environmental and viewing conditions, the International Telecommunications Union ...
Both the UFO Club and Middle Earth Club were short-lived but saw performances by artists such as house-band Pink Floyd, Soft ... VJs ("video jockeys") mix video content in a similar manner that DJs mix audio content, creating a visual experience that is ... Many exceptions are made to nightclub dress codes, with denied entry usually reserved for the most glaring rule breakers or ... Light-up club wear for performances, glowing under black lights. (Barcelona, 2003) ...
"Rocket's red glare", Flight International, 11-17 March 1998. .. *^ a b "Funding struggle hits Eurofighter missile", Flight ... Meteor is an active radar guided beyond-visual-range air-to-air missile (BVRAAM) being developed by MBDA. Meteor will offer a ... The key to Meteor's performance is a throttleable ducted rocket (ramjet) manufactured by Bayern-Chemie of Germany. ... "Beyond Visual Range Air to Air Missile (BVRAAM)". Ministry of Defence. Archived from the original on 2006-11-08. Retrieved 2006 ...
"Beyond Visual Range Air to Air Missile (BVRAAM)". Ministry of Defence. Archived from the original on 2006-11-08. Retrieved 2006 ... According to MBDA, Meteor has three to six times the kinematic performance of current air-air missiles of its type. The key to ... "Rocket's red glare", Flight International, 11-17 March 1998 . "Funding struggle hits Eurofighter missile", Flight International ... Although no detailed performance requirements have been publicly released, they were understood to demand launch success and no ...
The light should be projected downward toward the eyes at an angle to minimize aversive visual glare. Smaller is not better; ... Smith MR, Eastman CI (December 2008). "Night shift performance is improved by a compromise circadian phase position: study 3. ... Considering three major factors - clinical efficacy, ocular and dermatologic safety, and visual comfort, the Center for ...
Personal relationships of Michael Jackson
Following such performances, the Jackson brothers would be tucked in bed by their oblivious mother and reminded of the virtues ... ISBN 0-8283-2003-9. Grant, Adrian (2009). Michael Jackson: The Visual Documentary. Omnibus Press. ISBN 978-1-84938-261-8. ... foremost being that we are both very private people living in the glare of the public media. We both wanted a private marriage ... skirts and peek at their panties as part of the performance. Though embarrassed by the task, Jackson feigned enjoyment as he ...
Macular Pigment and Visual Performance in Glare: Benefits for Photostress Recovery, Disability Glare, and Visual Discomfort |...
Macular Pigment and Visual Performance in Glare: Benefits for Photostress Recovery, Disability Glare, and Visual Discomfort ... Macular Pigment and Visual Performance in Glare: Benefits for Photostress Recovery, Disability Glare, and Visual Discomfort ... Macular Pigment and Visual Performance in Glare: Benefits for Photostress Recovery, Disability Glare, and Visual Discomfort. ... Visual performance can be greatly compromised when glaring light enters the visual field. This is especially true of central ...
The ISTIL Laboratory of Photometry and Radiometry of Light Pollution
Disability glare: the effect of stray light in the eye whereby visibility and visual performance are reduced. A direct glare ... It is the veiling effect produced by bright sources or areas in the visual field that results in decreased visual performance ... Glare. Hyperspectral imaging of polluting areas and lighting installations. Instrument: WASBAM with a modified version of Small ... Irradiance standard - Optical bench and high performance radiometric power supply. Example: relative illuminance stability over ...
Most Popular Articles : Optometry and Vision Science
Macular Pigment and Visual Performance Under Glare Conditions. STRINGHAM, JAMES M.; HAMMOND, BILLY R. ... Visual Deficits and Dysfunctions Associated with Traumatic Brain Injury: A Systematic Review and Meta-analysis. Merezhinskaya, ... Impact of Dry Eye on Visual Acuity and Contrast Sensitivity: Dry Eye Assessment and Management Study. Szczotka-Flynn, Loretta B ... The Effect of a Head-mounted Low Vision Device on Visual Function. Wittich, Walter; Lorenzini, Marie-Céline; Markowitz, Samuel ...
CDC - Mining - Discomfort Glare Comparison for Various LED Cap Lamps - NIOSH
Thus, the NIOSH prototype cap lamp does not cause excessive discomfort glare yet enables better visual performance. ... Prior research indicated that the NIOSH prototype enabled much better visual performance as compared to other LED cap lamps. It ... Visual Performance for Incandescent and Solid-State Cap Lamps in an Underground Mining Environment ... Visual Performance for Trip Hazard Detection When Using Incandescent and LED Miner Cap Lamps ...
Why HID headlights bother older drivers | British Journal of Ophthalmology
... visual performance decreases with increasing age on most other sensory tests, including visual field, glare recovery time, ... 66 Poor performance on glare sensitivity testing is often referred to as increased "glare sensitivity" or decreased "glare ... Visual performance under adverse conditions can also be studied without a separate glare source, however, by decreasing the ... Disability glare does impair visual performance. It has been divided classically into "veiling," "dazzle," and "scotomatic" ...
FOUR SEVEN WHITE - Goggles - Protective & Goggles - MEN
Potential of perforated exterior louvers to improve the comfort and energy performance of an office space in different climates...
... resulting in high cooling energy consumption and visual discomfort. The objective of this study was to... ... Wienold J (2009). Dynamic daylight glare evaluation. In: Proceeings of the 11th International IBPSA Conference, Glasgow, UK. ... perforated exterior louvers visual comfort solar heat gains energy performance daylight integrated building simulations ... providing visual comfort to the occupant and improving the energy performance of an office space in distinct climates (tropical ...
LED Lighting: Technology and Perception | Optics & Photonics | Physics & Astronomy | Subjects | Wiley
... visual performance, conspicuity and disability glare. The topic of LED luminaires is discussed in a separate chapter, including ... 6.3 Mesopic Visual Performance under LED Lighting Conditions 353. 6.4 Visual Acuity in the Mesopic Range with Conventional ... 6.1 Foundations and Models of Mesopic Brightness and Visual Performance 337. 6.2 Mesopic Brightness under LED Based and ... 2 The Human Visual System and Its Modeling for Lighting Engineering 7. Peter Bodrogi and Tran Quoc Khanh ...
Township of Millcreek, PA Nuisances
GLARE. The effect produced by brightness sufficient to cause annoyance, discomfort or loss in visual performance and/or ... Any environmental pollutant, such as smoke, odors, liquid wastes, solid wastes, radiation, noise, vibration, glare or heat.. ... Any use of or activity upon property that, by reason of flame, glare, smoke, odors, emission, fumes, noise or dust, ...
Lifestyle and Adverse Performance Effects (OGHFA BN) - SKYbrary Aviation Safety
These drops have serious negative side effects on performance, particularly visual performance at night. ... SMITH (A.P.) & KENDRICK (A.M.).- Meal and performance. In: Handbook of Human Performance. Saiths and Jones (Eds), Academic ... The use of caffeine can prevent falling asleep, but it does not necessarily improve performance. The performance of a person ... Thus, taking carbohydrates, while favorable to physical performance, can lead to a decreased level of cognitive performance. By ...
Are your Eyes (and Brain) Getting Enough Lutein and Zeaxanthin? Probably Not - 06 - 2014 - TalkingNutrition - DSM
Macular pigment and visual performance under glare conditions. 2008 Optom Vis Sci doi: 10.1097/OPX.0b013e318162266e ... Higher MPOD is strongly correlated with visual performance, especially under glare conditions, and probably brain function as ... Relying upon Diet to Enhance Your Visual Experiences! *07 *Two Studies Recommend DHA Supplementation During Pregnancy *08 *Only ... Vitamin D helps power athletic performance *Vitamin E: More Evidence of Health Benefits and Gaps in Intake *High Fiber ...
Frontiers | The Role of Retinal Carotenoids and Age on Neuroelectric Indices of Attentional Control among Early to Middle-Aged...
Cognitive control was measured using event-related potentials during the performance of cognitive control tasks designed to tap ... Cognitive control was measured using event-related potentials during the performance of cognitive control tasks designed to tap ... Stringham, J. M., and Hammond, B. R. (2008). Macular pigment and visual performance under glare conditions. Optom. Vis. Sci. 85 ... Indeed, higher levels of lutein and zeaxanthin have been directly linked to superior visual performance (Stringham and Hammond ...
Glaringly | definition of glaringly by Medical dictionary
glare source See glare.. glare tester An instrument for measuring the effect of glare on visual performance. There exist ... disability glare Glare which reduces visual performance without necessarily causing discomfort.. discomfort glare Glare which ... glare. A visual condition in which the observer feels either discomfort and/or exhibits a lower performance in visual tests (e. ... eccentric glare See indirect glare.. indirect glare Glare produced by an intense light source situated in a direction other ...
SK Plus Polarized Sunglasses | Sportsman's Warehouse
They block100 percent of harmful UV light and remove glare from the water, reducing eye strain. - Sportsmans Warehouse ... They block 100% of harmful UV light and remove glare from the water, reducing eye strain. The improved optical performance of ... If youve never fished with polarized lenses, youll be surprised at how much they reduce the glare on the water on a bright ... They block100 percent of harmful UV light and remove glare from the water, reducing eye strain.. ...
Secondary School | WBDG - Whole Building Design Guide
Collaborative for High Performance Schools (CHPS)-Resources for high performance school design, construction, operations, and ... Avoid glare and direct-beam sunlight.. *Use daylighting analysis tools to model the interaction of lighting and materials that ... Maximize visual access to corridors and school grounds.. *Increase occupants sense of ownership and "territoriality" by ... Use energy simulation and analysis tools to optimize energy performance (integrate daylighting systems, high-performance HVAC, ...
Bad glasses or bad light: Symptoms of wrong glasses prescription?
Does eye fatigue or the glare from your mobile or laptop display damage your eyes over the long term? ... Visual acuity is the term used to describe the general visual performance of your eyes: how well can you recognize patterns and ... Is the glare from artificial light, such as a mobile or laptop display, equally unproblematic for your eyes? ... Thus impaired visual performance is often only discovered by an objective source, i.e. when youre applying for a driving ...
Attenuating Photostress and Glare Disability in Pseudophakic Patients through the Addition of a Short-Wave Absorbing Filter
Glare disability threshold was assessed as the intensity of a white-light annulus necessary to obscure a central target. The ... Photostress recovery time and glare disability thresholds were measured with clip-on blue-light-filtering and placebo (clear; ... to the glasses of pseudophakic patients implanted with clear IOLs significantly increased their ability to cope with glare and ... Photostress recovery time and glare disability thresholds were significantly improved (both ,svg xmlns:xlink=http://www.w3.org ...
Township of North Newton, PA Terminology
GLARE. The effect produced by light with an intensity sufficient to cause annoyance, discomfort, or loss in visual performance ... The provision of a barrier to visibility, airborne particles, glare and noise between adjacent properties uses and/or districts ... This term also includes establishments presenting motion picture film, audio/video materials, or live performances which are ...
Search Results For Health And Wellness: Luein's Results found: 6
Macular pigment and visual performance under glare conditions. Optom Vis Sci. 2008 Feb; 85(2):82-8. 8. "Lutein and Zeaxanthin ... Newly published research has demonstrated that lutein and zeaxanthin supplementation may enhance visual performance under glare ... Improvements in visual function were also detected with lutein supplementation. Glare recovery, visual acuity, and contrast ... This increase in MPOD was also directly related to measured improvements in visual performance after exposure to bright light, ...
Search Results For Health And Wellness: Ultra Results found: 97
Macular pigment and visual performance under glare conditions. Optom Vis Sci. 2008 Feb; 85(2):82-8. 8. "Lutein and Zeaxanthin ... Newly published research has demonstrated that lutein and zeaxanthin supplementation may enhance visual performance under glare ... This increase in MPOD was also directly related to measured improvements in visual performance after exposure to bright light, ... Maintains Healthy Visual Function* It has been well established that lutein is present in high concentrations in the retinal ...
Lighting and Glare - VisionAware
... it can interfere with your visual comfort, physical safety, and independent performance of everyday activities. ... Lighting and Glare. Lighting and Glare. Its surprising to a lot of people that something as basic as adequate lighting can be ... Glare. As you evaluate the different types and sources of light within your home, its also important to check for glare. ... Glare is reflected or uncontrolled light that shines directly into your eyes. Although it is very bright, the light produced by ...
Eye Movement and Pupil Size Constriction Under Discomfort Glare | IOVS | ARVO Journals
Macular pigment and visual performance in glare: benefits for photostress recovery, disability glare, and visual discomfort. ... Discomfort glare is the glare that causes discomfort without necessarily impairing the vision of objects; disability glare is ... including visual comfort probability,13 discomfort glare rating, and unified glare rating.14 Quantitative subjective ... Visual Psychophysics and Physiological Optics , March 2015. Eye Movement and Pupil Size Constriction Under Discomfort Glare ...
A CASE STUDY OF UNDER-UTILIZED INTERDISCIPLINARY REFERRALS
Thus use of rigid contact lenses to increase visual performance by masking the advancing corneal distortion is the traditional ... She had incoming complaints of photophobia and sensitivity to glare. She was requesting low vision aids to assist her reading ... The patient had no visual correction and presented with entering acuities of 1/700 OU. The patient was fit with rigid contact ... The patient was re-fit in rigid contact lenses at our clinic, which provided acceptable comfort and measured visual acuity of ...
NIOSHTIC-2 Search Results - Full View
Topics included: modification of existing work environments; visual environment for video display terminals (VDTs); ... illumination and glare; job task demands; workstation design; workload and workplace; job content; control over the work ... and performance monitoring. The author recommends that as part of the introduction of computerized office technology, ...
Foods | Free Full-Text | Macular Carotenoid Supplementation Improves Visual Performance, Sleep Quality, and Adverse Physical...
Visual performance measures included contrast sensitivity, critical flicker fusion, disability glare, and photostress recovery ... and all visual performance measures, versus placebo (p , 0.05 for all). Increased MPOD significantly improves visual ... At baseline, MPOD was correlated significantly with all visual performance measures (p , 0.05 for all). MC supplementation (24 ... Stringham, J.M.; Stringham, N.T.; OBrien, K.J. Macular Carotenoid Supplementation Improves Visual Performance, Sleep Quality, ...
Solar Bat Sunglasses - eyeTopics
These tints eliminate glare and improve visual acuity and performance.. Noctular performance tints are perfect for sporting ... Solar Bat Sunglasses have three distinct types of lenses available: Noctular and Noctular PNV Performance tints, BVL Mirror ... lenses Senior citizens sunglasses Technology Top Stories Vision Vision Development Vision Health Vision Therapy visual skills ... lenses Senior citizens sunglasses Technology Top Stories Vision Vision Development Vision Health Vision Therapy visual skills ...
The Effects of Lutein and Zeaxanthin Supplementation on Vision in Patients With Albinism - Tabular View - ClinicalTrials.gov
It is also thought to improve visual function via reduction of chromatic aberration and glare. It is currently unclear as to ... The MP would, however, be a hypothetical and good candidate to improve visual performance - simply by increasing pigmentation, ... The absent pigmentation within the retinal pigment epithelium (RPE) may thus contribute to visual performance deficits. ... Best corrected visual acuity of 20/200 or better in one or both eligible eyes (eyes that confirmed to be eligible by the MPOD ...
City of Monessen, PA Definitions
GLARE. A sensation of brightness within the visual field which causes annoyance, discomfort or loss in visual performance, ... An area required to be kept free of visual obstruction. See § 375-64.. SIGN. Any physical device for visual communication that ... A man-made barrier placed or arranged as a line of demarcation, an enclosure or a visual barrier that is constructed of wood, ... Creation of visual arts (such as painting, ceramics, sculpture or wood carving); or ...
Relationship between macular pigment and visual function in subjects with early age-related macular degeneration | British...
Macular pigment and visual performance in glare: benefits for photostress recovery, disability glare, and visual discomfort. ... Macular pigment and visual performance under glare conditions. Optom Vis Sci 2008;85:82-8. doi:10.1097/OPX.0b013e318162266e. ... Subjective visual function. Subjective visual function was assessed using the National Eye Institute Visual Function ... mesopic and photopic glare disability (GD), photostress recovery time (PRT), reading performance and subjective visual function ...
Measured visual acuityIlluminationIntended to reduce glareImprovesReducesReductionHalosFlickerPigment and Visual PerformanceSunglassesAcuity and performanceSignificantlyImprove visual acuityAnti-glare coatingsCoatingsReduceDiscomfort from glareClaritySensitivity to glareLuteinLuminanceNear visual acuityDistance visual acuityRetinalSupplementationHarsh glareTintsReflectiveMesopic conditionsNighttimePerceptionBoerIncreasesIntenseExposureLens TechnologyContrast sensitivity chartDaylightSunglass performanceColorsCarotenoidsCataractCause discomfortPolarizationPsychophysicalPupil size
Measured visual acuity1
- Visual skills are pushed to their limit at night by decreased illumination and by disabling glare from oncoming headlights. (bmj.com)
- during 2004 to 2013, roof bolter glare and increasing floor illumination to By John J. Sammarco operators experienced 16 fatalities and 3,411 improve the ability of miners to see floor nonfatal lost-time injuries, accounting for tripping hazards. (cdc.gov)
- The design maximizes floor illumination while reducing glare. (cdc.gov)
- A project to improve mine illumination such that a mine worker's visual performance improves to better recognize slip/trip/fall hazards and pinning/striking hazards from moving machinery. (cdc.gov)
- The effect of actual device performance on lighting energy use, direct sun control, discomfort glare, and interior illumination is discussed. (unt.edu)
- This much needed, comprehensive and modern reference on display technology, illumination sources and color imaging focuses on visual effects and how reproduced images are best matched to human visual features. (bokus.com)
Intended to reduce glare1
- Increased MPOD significantly improves visual performance and, in turn, improves several undesirable physical outcomes associated with excessive ST. The improvement in sleep quality was not directly related to increases in MPOD, and may be due to systemic reduction in oxidative stress and inflammation. (mdpi.com)
- Our results suggest that T-CAT PRK provides good outcomes and improves the visual performance," the authors wrote. (healio.com)
- Improves a gamer's visual efficiency, endurance and recovery. (overclockers.co.uk)
- Scientifically engineered to cut through harsh glare, our amber lens increases contrast and improves depth perception. (cocoonseyewear.com)
- Reduces glare and improves contrast. (wileyx.com)
- 100% Polarisation efficiently eliminates reflective glare and reduces eye strain. (johnnorris.co.uk)
- Glare off of horizontal surfaces like snow, water, and asphalt, decreases depth perception, and reduces visual acuity which causes eye fatigue. (smithoptics.com)
- GUNNAR patented lens technology reduces glare and prevents dry eyes. (overclockers.co.uk)
- Reduces glare. (wileyx.com)
- The right pair of performance sunglasses should offer a combination of UV protection and glare reduction. (thevisioncouncil.org)
- Patients that have had previous refractive surgery frequently show additional loss of contrast with a reduction in visual quality 6). (ophtec.com)
- Maximum glare reduction. (wileyx.com)
- Maximum glare reduction without distorting colors. (wileyx.com)
- Multifocal IOL implants may be inadvisable in patients where central visual field reduction may not be tolerated, such as macular degeneration, retinal pigment epithelium changes, and glaucoma. (abbottmedicaloptics.com)
- 01). Similar halos and glare were present in the two groups. (healio.com)
- No symptoms related to visual quality, such as glare, halos or starbursts, were reported. (healio.com)
- Patients with decentred implants may experience glare, halos and a decline of visual acuity. (ophtec.com)
- These may include a perception of halos/glare around lights under nighttime conditions. (abbottmedicaloptics.com)
Pigment and Visual Performance1
- Macular pigment and visual performance under glare conditions. (dsm.com)
- The improved optical performance of these sunglasses makes for safer boating and allows the angler to see down into the water for more effective and enjoyable fishing. (sportsmanswarehouse.com)
- From sky diving to riding, the Torque™ high performance sunglasses have you covered. (libertysport.com)
- Unlike discomfort glare, it cannot be mitigated with sunglasses or glare filters. (crstoday.com)
- Sunglasses specially made for fishing and boating are often polarized to curb glare and sharpen scenery. (thevisioncouncil.org)
- Considering the important effect of various colors of sunglasses on visual performance, this study was aimed to evaluate the effect of different colors of sun glasses on visual acuity, contrast sensitivity , stereopsis and color vision. (thefreedictionary.com)
Acuity and performance1
- Smaller pupil diameter during glare presentation significantly correlated with higher visual discomfort ratings ( P = 0.037). (arvojournals.org)
- Since perforations can significantly influence office performance and occupant comfort, it is crucial for an evaluation of this type of louver to be completed in the early design stages with integrated thermal and lighting simulation tools that are able to address the complex thermal and optical properties of the louvers. (springer.com)
- Louvers with 120 mm spacing and 5%-20% perforations reduce office energy consumption by 15%-63% (depending on the city) compared with an unshaded window while meeting the visual comfort criteria (sDA 300/50% between 96% and 100%, ASE 4000/400h of 0% and DGPs perception class A). Additionally, the percentage of perforations and spacing of louvers significantly impact the evaluated performance criteria. (springer.com)
- Compared with a nonfiltering placebo, adding a clip-on blue-absorbing filter to the glasses of pseudophakic patients implanted with clear IOLs significantly increased their ability to cope with glare and to recover normal viewing after an intensive photostress. (hindawi.com)
- Diffractive trifocal IOLs can provide significantly better intermediate vision and equivalent distance and near visual performance compared to bifocal IOLs and do not induce extra qualitative vision disturbances. (healio.com)
- Moreover, crowded acuity was significantly associated with maximum reading speed, indicating that patients who were more susceptible to visual crowding read more slowly. (meresearch.org.uk)
- The authors concluded that the combination of LJ100 and Polygonum minus 'significantly improved sexual performance across several clinically important parameters after 12 weeks when compared to placebo. (nutraceuticalsworld.com)
- 2002) reported significantly lower visual contrast sensitivity (VCS) in apartment residents exposed to tetrachloroethylene (perchloroethylene, or perc) compared to unexposed "matched" control subjects. (thefreedictionary.com)
Improve visual acuity1
- These high-performance windows feature double or triple glazing, specialized transparent coatings, insulating gas sandwiched between panes, and improved frames. (wbdg.org)
- U-factors usually range from a high of 1.3 (for a typical aluminum frame single glazed window) to a low of around 0.2 (for a multi-paned, high-performance window with low-emissivity coatings and insulated frames). (wbdg.org)
- Look for polarized or mirror coatings and amber tints, which are easy on eyes, enhance contrast and minimize glare. (thevisioncouncil.org)
- ZEISS Photofusion ups the photochromic "cool factor" by offering the lens with fashion tints and flash mirror coatings, making this a convenient high style, fun lens option for those who want style and performance in their eyewear. (2020mag.com)
- Our no-glare lens coatings are also hydrophobic. (39dollarglasses.com)
- Mirrored coatings provide a reflective surface that shields the wearer's eyes from glare and heat. (hopkinsmedicine.org)
- The result: better visual acuity while helping reduce eye strain and eye fatigue. (ishn.com)
- New science shows that lutein, zeaxanthin, and meso-zeaxanthin can greatly reduce the effects of glare and loss of visual sensitivity that occur when driving at night. (lifeextension.com)
- Science suggests that macular pigment, made up of lutein and zeaxanthin, plays a role in helping to reduce glare which may help with visual performance. (heb.com)
- For example, successful daylighting designs will carefully consider the use of shading devices to reduce glare and excess contrast in the workspace. (wbdg.org)
Discomfort from glare1
- The clarity they provide also helps increase comfort, performance and productivity. (ishn.com)
- The result - improved clarity, focus and performance designed to meet demanding visual needs of our generation. (overclockers.co.uk)
- Years back Henrik decided to wear Wiley X because of the clarity of the lens as well as the performance of the polarized filter. (issuu.com)
- Over the years I have tried them all, searching for clarity, comfort and enhanced visual acuity. (steenaero.com)
- They are lighter-weight and can provide improved edge-to-edge visual clarity by utilizing an aspheric or atoric design. (hopkinsmedicine.org)
- They also offer 100% UV protection while increasing visual clarity and depth perception. (hopkinsmedicine.org)
- Optical performance meets all ANSI Z87.1 standards for clarity and visual fidelity. (tredz.co.uk)
Sensitivity to glare2
- She had incoming complaints of photophobia and sensitivity to glare. (aaopt.org)
- A paper by Stringham and Hammond, published in the Journal of Food Science, reviews studies of effects of consuming Lutein and Zeaxanthin on visual performance, and notes a decrease in sensitivity to glare. (wikipedia.org)
- We determined baseline associations and effects of 6 months' supplementation with the macular carotenoids (MC) lutein, zeaxanthin, and mesozeaxanthin on the blue-absorbing macular pigment (MP) and measures of sleep quality, visual performance, and physical indicators of excessive ST. Forty-eight healthy young adults with at least 6 h of daily near-field ST exposure participated in this placebo-controlled trial. (mdpi.com)
- The LUVIA study is a randomized placebo-controlled trial designed to investigate the effects of lutein and zeaxanthin supplementation on macular pigment and visual function in ocular or oculocutaneous albinism. (clinicaltrials.gov)
- To reach the conclusion, authors from the University of Georgia compiled the results of multiple studies on the effects of the carotenoids lutein and zeaxanthin on visual performance. (diigo.com)
- After reviewing the various studies, the authors concluded that macular pigments, such as lutein and zeaxanthin do have an effect on visual performance. (diigo.com)
- Authors from the University of Georgia compiled the results of multiple studies on the effects of the carotenoids lutein and zeaxanthin on visual performance. (diigo.com)
- We investigated the effect of long-term antioxidant supplementation (lutein and alpha-tocopherol) on serum levels and visual performance in patients with cataracts. (nih.gov)
- Visual performance (visual acuity and glare sensitivity) improved in the lutein group, whereas there was a trend toward the maintenance of and decrease in visual acuity with alpha-tocopherol and placebo supplementation, respectively. (nih.gov)
- Visual function in patients with age-related cataracts who received the lutein supplements improved, suggesting that a higher intake of lutein, through lutein-rich fruit and vegetables or supplements, may have beneficial effects on the visual performance of people with age-related cataracts. (nih.gov)
Near visual acuity2
- No statistically significant difference was found in distance or near visual acuity between the two groups ( P ≥ .05). (healio.com)
- The correlations of neuroticism with near visual acuity, distance visual acuity, and contrast sensitivity were all not significant ([less than or equal to] 0. (thefreedictionary.com)
Distance visual acuity2
- Patients had no previous ocular surgery, refractive stability for at least 1 year, corrected distance visual acuity (CDVA) of 20/25 or better, spherical equivalent refraction of less than 6 D, refractive astigmatism of less than 3 D, and age between 18 and 40 years. (healio.com)
- Primary outcome measures included manifest refraction spherical equivalent (MRSE), uncorrected distance visual acuity (UDVA), CDVA, actual vs. targeted change in spherical equivalent and change in lines of vision. (healio.com)
- 4 , 6-10 Furthermore, most interventional trials have shown that supplementation with the macular carotenoids impacts positively on visual function in subjects with and without retinal disease, 11-16 and it appears that supplementation with all three macular carotenoids offers advantages over formulations containing only two of these three nutrients. (bmj.com)
- Those with early age-related macular degeneration are 4.3 times as likely to report difficulty with night driving, 5-fold more likely to have trouble with near vision, and 2.7 times as likely to have difficulty with glare, compared with same-age people in normal retinal health. (lifeextension.com)
- Noctular performance tints are perfect for sporting events like golf, fishing, shooting sports and foggy conditions. (eyetopics.com)
- Dr Gary Nesty called on his knowledge of optics and the human eye to design tints to enhance vision and thus performance in your chosen sport and outdoor activities. (outdoorproshop.com)
- Colour tints are increasingly popular among professional athletes to increase their visual performance. (allaboutvision.com)
- The near, intermediate, and distance visual acuities, defocus curve, optical quality including modulation transfer functions and higher-order aberrations, National Eye Institute Visual Functioning Questionnaire-14, patient satisfaction, spectacle independence, and perception of visual disturbances were assessed in all patients. (healio.com)
- Wearing cycling glasses doesn't only offer protection, they can also enhance your visual acuity (your ability to spot objects on the road or trail), colour and depth perception. (tredz.co.uk)
- It also offers an explanation as to why long-term exposure to discomfort glare leads to visual fatigue and eyestrain. (arvojournals.org)
- 8-12 These effects leave our eyes vulnerable to glare, and slow to recover from sudden exposure to bright lights (say, the headlights of an oncoming car). (lifeextension.com)
Contrast sensitivity chart1
- Fully glazed building façades often experience high solar heat gains and daylight transmission, resulting in high cooling energy consumption and visual discomfort. (springer.com)
- This study demonstrates the potential of perforated exterior louvers for controlling solar heat gains and daylight transmission to improve the visual comfort of the occupant and the building energy consumption. (springer.com)
- Efficient venetian blind control strategies considering daylight utilization and glare protection. (springer.com)
- Beyond adding windows or skylights to a space, it involves carefully balancing heat gain and loss, glare control, and variations in daylight availability. (wbdg.org)
- As even high-performance glazings do not have insulation ratings close to those of wall constructions, the window area needs to be a careful balance between admission of daylight and thermal issues such as wintertime heat loss and summertime heat gain. (wbdg.org)
- The American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) offers guidance on these ratios per climate zone in their Standard 90.1 energy code , but these are primarily minimal for thermal performance and do not consider admission of daylight. (wbdg.org)
- Carotenoids, found in green leafy vegetables and colored fruits, boost visual performance and may prevent age-related eye diseases, says a new study. (diigo.com)
- Carotenoids, found in green leafy vegetables and colored fruits, have been found to increase visual performance and may prevent age-related eye diseases, according to a study in the Journal of Food Science, published by the Institute of Food Technologists. (diigo.com)
- Functional measures of visual performance are better indicators of driving ability than visual acuity, and they should be used to assess patients' need for cataract surgery. (crstoday.com)
- At least 43% of people five years out from cataract surgery experience glare-related difficulties with driving. (lifeextension.com)
- Polarization will remove the glare from the surface of the water allowing you to see through to the bottom. (outdoorproshop.com)
- Polarization cuts glare. (smithoptics.com)
- The specially formulated tint with our high-performance polarization heightens contrast and object definition, supporting visual acuity against even the busiest surroundings. (cocoonseyewear.com)
- Involuntary physiological responses offer an alternative means to psychophysical procedures for objectively evaluating discomfort glare. (arvojournals.org)
- In numerous studies, 3 - 12 discomfort glare was measured using psychophysical procedures such as category rating, and from these data metrics have been developed to predict the degree of discomfort glare, including visual comfort probability, 13 discomfort glare rating, and unified glare rating. (arvojournals.org)