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)
Presbyopia
Optometry
Refractive Errors
Lens, Crystalline
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.
Ciliary Body
Eye
Ocular Hypertension
Retinoscopy
Hyperopia
A refractive error in which rays of light entering the eye parallel to the optic axis are brought to a focus behind the retina, as a result of the eyeball being too short from front to back. It is also called farsightedness because the near point is more distant than it is in emmetropia with an equal amplitude of accommodation. (Dorland, 27th ed)
Toxoplasmosis, Ocular
Infection caused by the protozoan parasite TOXOPLASMA in which there is extensive connective tissue proliferation, the retina surrounding the lesions remains normal, and the ocular media remain clear. Chorioretinitis may be associated with all forms of toxoplasmosis, but is usually a late sequel of congenital toxoplasmosis. The severe ocular lesions in infants may lead to blindness.
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)
Eyeglasses
Anterior Eye Segment
Iris
Ocular Physiological Phenomena
Albinism, Ocular
Albinism affecting the eye in which pigment of the hair and skin is normal or only slightly diluted. The classic type is X-linked (Nettleship-Falls), but an autosomal recessive form also exists. Ocular abnormalities may include reduced pigmentation of the iris, nystagmus, photophobia, strabismus, and decreased visual acuity.
Diagnostic Techniques, Ophthalmological
Stomach
Lenses
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.
Tropicamide
Aniseikonia
Miotics
Ophthalmic Solutions
Cornea
The transparent anterior portion of the fibrous coat of the eye consisting of five layers: stratified squamous CORNEAL EPITHELIUM; BOWMAN MEMBRANE; CORNEAL STROMA; DESCEMET MEMBRANE; and mesenchymal CORNEAL ENDOTHELIUM. It serves as the first refracting medium of the eye. It is structurally continuous with the SCLERA, avascular, receiving its nourishment by permeation through spaces between the lamellae, and is innervated by the ophthalmic division of the TRIGEMINAL NERVE via the ciliary nerves and those of the surrounding conjunctiva which together form plexuses. (Cline et al., Dictionary of Visual Science, 4th ed)
Asthenopia
Gastric Balloon
Aberrometry
Adaptation, Ocular
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.
Anterior Chamber
The space in the eye, filled with aqueous humor, bounded anteriorly by the cornea and a small portion of the sclera and posteriorly by a small portion of the ciliary body, the iris, and that part of the crystalline lens which presents through the pupil. (Cline et al., Dictionary of Visual Science, 4th ed, p109)
Fixation, Ocular
Tonometry, Ocular
Corneal Wavefront Aberration
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)
Microscopy, Acoustic
A scientific tool based on ULTRASONOGRAPHY and used not only for the observation of microstructure in metalwork but also in living tissue. In biomedical application, the acoustic propagation speed in normal and abnormal tissues can be quantified to distinguish their tissue elasticity and other properties.
Infrared Rays
Gastric Dilatation
Aqueous Humor
Vision, Ocular
Vitreous Body
Oculomotor Muscles
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)
Eye Injuries
Biometry
Tuberculosis, Ocular
Aging
Refractometry
Oculomotor Nerve
The 3d cranial nerve. The oculomotor nerve sends motor fibers to the levator muscles of the eyelid and to the superior rectus, inferior rectus, and inferior oblique muscles of the eye. It also sends parasympathetic efferents (via the ciliary ganglion) to the muscles controlling pupillary constriction and accommodation. The motor fibers originate in the oculomotor nuclei of the midbrain.
Contact Lenses, Hydrophilic
Lens Capsule, Crystalline
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).
Choroid
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.
Gastroparesis
Anatomy, Cross-Sectional
Descriptive anatomy based on three-dimensional imaging (IMAGING, THREE-DIMENSIONAL) of the body, organs, and structures using a series of computer multiplane sections, displayed by transverse, coronal, and sagittal analyses. It is essential to accurate interpretation by the radiologist of such techniques as ultrasonic diagnosis, MAGNETIC RESONANCE IMAGING, and computed tomography (TOMOGRAPHY, X-RAY COMPUTED). (From Lane & Sharfaei, Modern Sectional Anatomy, 1992, Preface)
Employment, Supported
Paid work for mentally or physically disabled persons, taking place in regular or normal work settings. It may be competitive employment (work that pays minimum wage) or employment with subminimal wages in individualized or group placement situations. It is intended for persons with severe disabilities who require a range of support services to maintain employment. Supported employment differs from SHELTERED WORKSHOPS in that work in the latter takes place in a controlled working environment. Federal regulations are authorized and administered by the U.S. Department of Education, Office of Special Education and Rehabilitative Services.
Host vs Graft Reaction
Timolol
Administration, Topical
The application of drug preparations to the surfaces of the body, especially the skin (ADMINISTRATION, CUTANEOUS) or mucous membranes. This method of treatment is used to avoid systemic side effects when high doses are required at a localized area or as an alternative systemic administration route, to avoid hepatic processing for example.
Eye Infections, Parasitic
Education of Hearing Disabled
Diplopia
A visual symptom in which a single object is perceived by the visual cortex as two objects rather than one. Disorders associated with this condition include REFRACTIVE ERRORS; STRABISMUS; OCULOMOTOR NERVE DISEASES; TROCHLEAR NERVE DISEASES; ABDUCENS NERVE DISEASES; and diseases of the BRAIN STEM and OCCIPITAL LOBE.
Macaca mulatta
Eye Infections
Uveitis
Sensory Deprivation
Dry Eye Syndromes
Corneal and conjunctival dryness due to deficient tear production, predominantly in menopausal and post-menopausal women. Filamentary keratitis or erosion of the conjunctival and corneal epithelium may be caused by these disorders. Sensation of the presence of a foreign body in the eye and burning of the eyes may occur.
Ocular Hypotension
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.
Lens Implantation, Intraocular
Photography
Echothiophate Iodide
Photic Stimulation
Vision Disparity
Nystagmus, Pathologic
Involuntary movements of the eye that are divided into two types, jerk and pendular. Jerk nystagmus has a slow phase in one direction followed by a corrective fast phase in the opposite direction, and is usually caused by central or peripheral vestibular dysfunction. Pendular nystagmus features oscillations that are of equal velocity in both directions and this condition is often associated with visual loss early in life. (Adams et al., Principles of Neurology, 6th ed, p272)
Adaptation, Physiological
Distance Perception
Oncology Service, Hospital
Ceremonial Behavior
Dark Adaptation
Axial Length, Eye
Tomography, Optical Coherence
Macaca fascicularis
Anxiety, Separation
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)
Glaucoma, Open-Angle
Pilocarpine
Papio hamadryas
Ligaments
Video Recording
Sign Language
Fundus Oculi
Sclera
The white, opaque, fibrous, outer tunic of the eyeball, covering it entirely excepting the segment covered anteriorly by the cornea. It is essentially avascular but contains apertures for vessels, lymphatics, and nerves. It receives the tendons of insertion of the extraocular muscles and at the corneoscleral junction contains the canal of Schlemm. (From Cline et al., Dictionary of Visual Science, 4th ed)
Self-Help Devices
Contrast Sensitivity
Eye Infections, Bacterial
Tonic Pupil
A pupillary abnormality characterized by a poor pupillary light reaction, reduced accommodation, iris sector palsies, an enhanced pupillary response to near effort that results in a prolonged, "tonic" constriction, and slow pupillary redilation. This condition is associated with injury to the postganglionic parasympathetic innervation to the pupil. (From Miller et al., Clinical Neuro-Ophthalmology, 4th ed, pp492-500)
Interferometry
Vagotomy, Truncal
Pressure
Onchocerciasis, Ocular
Filarial infection of the eyes transmitted from person to person by bites of Onchocerca volvulus-infected black flies. The microfilariae of Onchocerca are thus deposited beneath the skin. They migrate through various tissues including the eye. Those persons infected have impaired vision and up to 20% are blind. The incidence of eye lesions has been reported to be as high as 30% in Central America and parts of Africa.
Pemphigoid, Benign Mucous Membrane
Ophthalmoscopes
Anisocoria
Unequal pupil size, which may represent a benign physiologic variant or a manifestation of disease. Pathologic anisocoria reflects an abnormality in the musculature of the iris (IRIS DISEASES) or in the parasympathetic or sympathetic pathways that innervate the pupil. Physiologic anisocoria refers to an asymmetry of pupil diameter, usually less than 2mm, that is not associated with disease.
Phacoemulsification
A procedure for removal of the crystalline lens in cataract surgery in which an anterior capsulectomy is performed by means of a needle inserted through a small incision at the temporal limbus, allowing the lens contents to fall through the dilated pupil into the anterior chamber where they are broken up by the use of ultrasound and aspirated out of the eye through the incision. (Cline, et al., Dictionary of Visual Science, 4th ed & In Focus 1993;1(1):1)
Obsessive-Compulsive Disorder
An anxiety disorder characterized by recurrent, persistent obsessions or compulsions. Obsessions are the intrusive ideas, thoughts, or images that are experienced as senseless or repugnant. Compulsions are repetitive and seemingly purposeful behavior which the individual generally recognizes as senseless and from which the individual does not derive pleasure although it may provide a release from tension.
Exotropia
A form of ocular misalignment where the visual axes diverge inappropriately. For example, medial rectus muscle weakness may produce this condition as the affected eye will deviate laterally upon attempted forward gaze. An exotropia occurs due to the relatively unopposed force exerted on the eye by the lateral rectus muscle, which pulls the eye in an outward direction.
Epithelium, Corneal
Chorioretinitis
Latrunculin-A causes mydriasis and cycloplegia in the cynomolgus monkey. (1/610)
PURPOSE: To determine the effect of latrunculin (LAT)-A, which binds to G-actin and disassembles actin filaments, on the pupil, accommodation, and isolated ciliary muscle (CM) contraction in monkeys. METHODS: Pupil diameter (vernier calipers) and refraction (coincidence refractometry) were measured every 15 minutes from 0.75 to 3.5 hours after topical LAT-A 42 microg (approximately 10 microM in the anterior chamber [AC]). Refraction was measured every 5 minutes from 0.5 to 1.5 hours after intracameral injection of 10 microl of 50 microM LAT-A (approximately 5 microM in AC), with intramuscular infusion of 1.5 mg/kg pilocarpine HCl (PILO) during the first 15 minutes of measurements. Pupil diameter was measured at 1 and 2 hours, and refraction was measured every 5 minutes from 1 to 2 hours, after intravitreal injection of 20 microl of 1.25 mM LAT-A (approximately 10 microM in vitreous), with intramuscular infusion of 1.5 mg/kg PILO during the first 15 minutes of measurements (all after topical 2.5% phenylephrine), and contractile response of isolated CM strips, obtained <1 hour postmortem and mounted in a perfusion apparatus, to 10 microM PILO +/- LAT-A was measured at various concentrations. RESULTS: Topical LAT-A of 42 microg dilated the pupil without affecting refraction. Intracameral LAT-A of 5 microM inhibited miotic and accommodative responses to intramuscular PILO. Intravitreal LAT-A of 10 microM had no effect on accommodative or miotic responses to intramuscular PILO. LAT-A dose-dependently relaxed the PILO-contracted CM by up to 50% at 3 microM in both the longitudinal and circular vectors. CONCLUSIONS: In monkeys, LAT-A causes mydriasis and cycloplegia, perhaps related to its known ability to disrupt the actin microfilament network and consequently to affect cell contractility and adhesion. Effects of LAT-A on the iris and CM may have significant physiological and clinical implications. (+info)Tonic accommodation, age, and refractive error in children. (2/610)
PURPOSE: An association between tonic accommodation, the resting accommodative position of the eye in the absence of a visually compelling stimulus, and refractive error has been reported in adults and children. In general, myopes have the lowest (or least myopic) levels of tonic accommodation. The purpose in assessing tonic accommodation was to evaluate it as a predictor of onset of myopia. METHODS: Tonic accommodation was measured in children enrolled in the Orinda Longitudinal Study of Myopia using an infrared autorefractor (model R-1; Canon, Lake Success, NY) while children viewed an empty lit field or a dark field with a fixation spot projected in Maxwellian view. Children aged 6 to 15 years were measured from 1991 through 1994 (n = 714, 766, 771, and 790 during the 4 years, successively). Autorefraction provided refractive error and tonic accommodation data, and videophakometry measured crystalline lens curvatures. RESULTS: Comparison of the two methods for measuring tonic accommodation shows a significant effect of age across all years of testing, with the lit empty-field test condition yielding higher levels of tonic accommodation compared with the dark-field test condition in children aged 6 through 11 years. For data collected in 1994, mean (+/-SD) tonic accommodation values for the lit empty-field condition were significantly lower in myopes, intermediate in emmetropes, and highest in hyperopes (1.02 +/- 1.18 D, 1.92 +/- 1.59 D, and 2.25 +/- 1.78 D, respectively; Kruskal-Wallis test, P < 0.001; between-group testing shows each group is different from the other two). Age, refractive error, and Gullstrand lens power were significant terms in a multiple regression model of tonic accommodation (R2 = 0.18 for 1994 data). Lower levels of tonic accommodation for children entering the study in the first or third grades were not associated with an increased risk of the onset of myopia, whether measured in the lit empty-field test condition (relative risk = 0.90; 95% confidence interval = 0.75, 1.08), or the dark-field test condition (relative risk = 0.83; 95% confidence interval = 0.60, 1.14). CONCLUSIONS: This is the first study to document an association between age and tonic accommodation. The known association between tonic accommodation and refractive error was confirmed and it was shown that an ocular component, Gullstrand lens power, also contributed to the tonic accommodation level. There does not seem to be an increased risk of onset of juvenile myopia associated with tonic accommodation. (+info)Human dynamic closed-loop accommodation augmented by sympathetic inhibition. (3/610)
PURPOSE: A ciliary alpha-adrenoceptor accommodative effect has been proposed, caused by a small population of alpha1-inhibitory receptors in excised human ciliary muscle. This study was intended to investigate the effect on the closed-loop dynamic accommodative process of modulating alpha1-adrenoceptor activity by topical instillation of the alpha1-adrenergic agonist, phenylephrine hydrochloride. METHODS: A group of 10 visually normal subjects viewed a photopic (30 candela/m2) high-contrast Maltese cross, which was modulated sinusoidally (0.05-0.6Hz) and stepwise over a 2-D range (2-4 D). Monocular temporal accommodation responses were measured using a continuously recording dynamic tracking infrared optometer under two trial conditions: after instillation of saline control solution and 50 minutes subsequent to the instillation of 0.27 microl 0.4% benoxinate hydrochloride and 0.27 microl 2.5% phenylephrine hydrochloride. Pupil size and accommodative amplitude were measured at 90-second intervals for 50 minutes after drug instillation. All accommodative measurements were recorded through a fixed 4-mm pupil. RESULTS: A significant reduction in accommodative amplitude (11%; P < 0.05) was recorded, whereas pupil size showed a significant increase (33%; P < 0.05). No significant change in step-response dynamics was observed. However, phenylephrine hydrochloride caused a significant increase in accommodative gain in the low and midtemporal frequency ranges compared with the effect of a saline control treatment. No significant variation in phase lag was observed. CONCLUSIONS: For the first time in humans, this study shows that augmentation of the alpha1-inhibitory sympathetic contribution results in increased accommodative gain at low and midtemporal frequencies, which is consistent with findings in animal studies. (+info)Age-related changes in human ciliary muscle and lens: a magnetic resonance imaging study. (4/610)
PURPOSE: To use high-resolution magnetic resonance (MR) images of the eye to directly measure the relationship between ciliary muscle contraction and lens response with advancing age. METHODS: A General Electric, 1.5-Tesla MR imager and a custom-designed eye imaging coil were used to collect high-resolution MR images from 25 subjects, 22 through 83 years of age. A nonmagnetic binocular stimulus apparatus was used to induce both relaxed accommodation (0.1 diopter [D]) and strong accommodative effort (8.0 D). Measurements of the ciliary muscle ring diameter (based on the inner apex), lens equatorial diameter, and lens thickness were derived from the MR images. RESULTS: Muscle contraction is present in all subjects and reduces only slightly with advancing age. A decrease in the diameter of the unaccommodated ciliary muscle ring was highly correlated with advancing age. Lens equatorial diameter does not correlate with age for either accommodative state. Although unaccommodated lens thickness (i.e., lens minor axis length) increases with age, the thickness of the lens under accommodative effort is only modestly age-dependent. CONCLUSIONS: Ciliary muscle contractile activity remains active in all subjects. A decrease in the unaccommodated ciliary muscle diameter, along with the previously noted increase in lens thickness (the "lens paradox"), demonstrates the greatest correlation with advancing age. These results support the theory that presbyopia is actually the loss in ability to disaccommodate due to increases in lens thickness, the inward movement of the ciliary ring, or both. (+info)Characteristics of accommodation toward apparent depth. (5/610)
This paper deals with characteristics of accommodation evoked by perceived depth sensation and the dynamic relationship between accommodation and vergence, applying newly developed optical measurement apparatuses. A total of five subjects looked at three different two-dimensional stimuli and two different three-dimensional stimuli; namely a real image and a stereoscopic image. With regard to the two-dimensional stimuli, a manifest accommodation without any accompanying vergence was found because of an apparent depth sensation even though the target distance was kept constant. With regard to the three-dimensional stimuli, larger accommodation and clear vergence were evoked because of binocular parallax and a stronger depth sensation. As for the stereoscopic image, a manifest overshoot (the accommodation peaked first and receded considerably) was found while the vergence remained constant. On the other hand, the overshoot of accommodation was smaller when subjects were watching the real image. These results reveal that brain depth perception has a higher effect on accommodation than expected. The relationship of accommodation and vergence toward the stereoscopic image suggests a reason why severe visual fatigue is commonly experienced by many viewers using stereoscopic displays. It has also paved the way for the numerical analysis of the oculomotor triad system. (+info)Optics of the developing fish eye: comparisons of Matthiessen's ratio and the focal length of the lens in the black bream Acanthopagrus butcheri (Sparidae, Teleostei). (6/610)
Matthiessen's ratio (distance from centre of lens to retina:lens radius) was measured in developing black bream, Acanthopagrus butcheri (Sparidae, Teleostei). The value decreased over the first 10 days post-hatch from 3.6 to 2.3 along the nasal and from four to 2.6 along temporal axis. Coincidentally, there was a decrease in the focal ratio of the lens (focal length:lens radius). Morphologically, the accommodatory retractor lentis muscle appeared to become functional between 10-12 days post-hatch. The results suggest that a higher focal ratio compensates for the relatively high Matthiessen's ratio brought about by constraints of small eye size during early development. Combined with differences in axial length, this provides a means for larval fish to focus images from different distances prior to the ability to accommodate. (+info)The growing eye: an autofocus system that works on very poor images. (7/610)
It is unknown which retinal image features are analyzed to control axial eye growth and refractive development. On the other hand, identification of these features is fundamental for the understanding of visually acquired refractive errors. Cyclopleged chicks were individually kept in the center of a drum with only one viewing distance possible. Defocusing spectacle lenses were used to stimulate the retina with defined defocus of similar magnitude but different sign. If spatial frequency content and contrast were the only cues analyzed by the retina, all chicks should have become myopic. However, compensatory eye growth was still always in the right direction. The most likely cues for emmetropization, spatial frequency content and image contrast, do therefore not correlate with the elongation of the eye. Rather, the sign of defocus was extracted even from very poor images. (+info)Mechanics of accommodation of the human eye. (8/610)
The classical Helmholtz theory of accommodation has, over the years, not gone unchallenged and most recently has been opposed by Schachar at al. (1993) (Annals of Ophthalmology, 25 (1) 5-9) who suggest that increasing the zonular tension increases rather than decreases the power of the lens. This view is supported by a numerical analysis of the lens based on a linearised form of the governing equations. We propose in this paper an alternative numerical model in which the geometric non-linear behaviour of the lens is explicitly included. Our results differ from those of Schachar et al. (1993) and are consistent with the classical Helmholtz mechanism. (+info)
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Patent EP1755492A2 - Accommodating intraocular lens assemblies and accommodation measurement implant - Google Patents
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HITLab : Thomas A. Furness IIIs papers
Computer simulations of the effects of disk tilt and lens tilt on the push-pull tracking error signal in an optical disk drive<...
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Procedures for Providing Reasonable Accommodation for Individuals with Disabilities
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Resources | Whittier College
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Disability Documentation Guidelines
WJHS Summer Assignments & Review Packets
Connecting Contact Lenses and Digital Technology - Study Results - ClinicalTrials.gov
Aston Bay Satellite TV Facilities Accommodation - Satellite TV Facilities Aston Bay
Government grants hope with $500,000 to regional family accommodation: Leukaemia Foundation
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Accommodation Ideas for Individuals on Dialysis
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Tom Cornsweet
Crane, H.D.; Cornsweet, T.N. (1970). "Ocular focus stimulator". Journal of the Optical Society of America. 60 (4): 577. doi: ... Cornsweet, T.N.; Crane, H.D. (1973). "Training the visual accommodation system". Vision Research. 13 (3): 713-715. doi:10.1016/ ...
Library of Congress Classification:Class R -- Medicine
925-939...................................Refraction and errors of refraction and accommodation 939.2-981 ... Ocular therapeutics 110-320...................................Otology. Diseases of the ear 341-437 ...
Heterophoria
Disorders of ocular muscles, binocular movement, accommodation and refraction. Hidden categories: *All articles with dead ...
Cycloplegia
Disorders of ocular muscles, binocular movement, accommodation and refraction. Hidden categories: *Articles needing additional ... Cycloplegia is paralysis of the ciliary muscle of the eye, resulting in a loss of accommodation.[1] Because of the paralysis of ...
Ophthalmoparesis
Disorders of ocular muscles, binocular movement, accommodation and refraction. Hidden categories: *Articles needing additional ...
Chromatic aberration
"Spectral bandwidth and ocular accommodation". Journal of the Optical Society of America A. 12 (3): 450-5. Bibcode:1995JOSAA..12 ... Thibos, L. N.; Bradley, A; Still, D. L.; Zhang, X; Howarth, P. A. (1990). "Theory and measurement of ocular chromatic ... Kruger, P. B.; Mathews, S; Aggarwala, K. R.; Sanchez, N (1993). "Chromatic aberration and ocular focus: Fincham revisited". ...
Eye examination
... refraction Accommodative system Amplitude of accommodation Negative relative accommodation Positive relative accommodation ... Ocular motility should always be tested, especially when patients complain of double vision or physicians suspect neurologic ... Close inspection of the anterior eye structures and ocular adnexa are often done with a slit lamp which is a table mounted ... If there is a small, irregular pupil that constricts poorly to light, but normally to accommodation, this is an Argyll ...
Marius Tscherning
He is probably best known for his theory regarding the mechanism of accommodation, of which he disagreed with the accommodation ... He conducted research of entoptic phenomenon, Purkinje images, the etiology of myopia, and Listing's law of ocular movement. He ... Accommodation, Paris 1909 Octave Doin, ("Hermann von Helmholtz and the Theory of Accommodation") which was critical to ... Furthermore, he stated that during accommodation, while the central part of the anterior surface of the lens is bulged, the ...
Esotropia
However, where the degree of error is small enough to allow the child to generate clear vision by over-accommodation, but large ... These problems may directly affect the extra-ocular muscles themselves, and may also result from conditions affecting the nerve ... The over-convergence associated with the extra accommodation required to overcome a hyperopic refractive error can precipitate ... However, others will eventually require extra-ocular muscle surgery to resolve their problems. Congenital esotropia, or ...
List of reflexes (by organ)
... reflex Pupillary light reflex Vestibulo-ocular reflex Corneal reflex Oculocardiac reflex Ciliospinal reflex Accommodation ...
Eperisone
There have been reports of disturbances in ocular accommodation occurring after the concomitant use of the related drug ...
Mitochondrial optic neuropathies
When the details of the examination and history indicate a familial history of similar ocular or systemic disease, whether or ... Often treatment is relegated to lifestyle alterations and accommodations and supportive measures.[citation needed] Those ... diseases understood as congenital in origin could either be specific to the ocular organ system (LHON, DOA) or syndromic (MELAS ...
Prism cover test
doi:10.1016/j.ajo.2007.09.012 Campos, E.C., & von Noorden, G.K. (2006). Binocular vision and ocular motility (6th ed.) (p.177) ... it is easy to ensure they are maintaining their accommodation. 2. The examiner then holds the prism bar over the patients ... The prism cover test (PCT), is an objective measurement and the gold standard in measuring strabismus, i.e. ocular misalignment ... Ansons, A. M., & Davis, H. (2014). Diagnosis and Management of Ocular Motility Disorders (4th ed.). pp. 97. London: Blackwell. ...
Pseudomyopia
... through eye strain or fatigue of ocular systems. It is common in young adults who have active accommodation, and classically ... Organic causes may include systemic or ocular medications, brain stem injury, or active ocular inflammation such as uveitis. ... "Acute Adult Onset Comitant Esotropia Associated with Accommodative Spasm". Chan R, Trobe J (2002). "Spasm of accommodation ... "Comparative analysis of the efficacy of some methods of conservative treatment of accommodation spasms and myopia in children ...
Christian Georg Theodor Ruete
Book on eye diseases, therapeutics and ocular surgery. Ein neues Ophthalmotrop, 1857 - A new ophthalmotrope. Das Stereoscop : ... Pagel: Biographical Dictionary excellent doctors of the nineteenth century (biography) [1] On the anomalies of accommodation ...
Melanin
Further, the ocular lens yellows with age, providing added protection. However, the lens also becomes more rigid with age, ... losing most of its accommodation - the ability to change shape to focus from far to near - a detriment due probably to protein ... Ocular albinism affects not only eye pigmentation but visual acuity, as well. People with albinism typically test poorly, ... A decreased molecular weight or a decrease in the degree of polymerization of ocular melanin has been proposed to turn the ...
Edmund Landolt
Ocular muscles and their disorders. Pioneering the work in their study and treatment. He discovered "Landolt's bodies" between ... OCLC 29693375 The refraction and accommodation of the eye and their anomalies, Edinburgh, Pentland, 1886. OCLC 3057956 Ed. 2.: ... OCLC 83292691 Defective ocular movements and their diagnosis, London, Frowde, 1913. OCLC 14798829 and Marc Landolt Le ... OCLC 12013230 Refraction and accommodation of the eye and their anomalies, Edinburgh, Young J. Pentland, 1886. OCLC 11626601 ...
Orthoptics
... accommodation imbalances, (positive relative accommodation and negative relative accommodation). They work closely with ... French ophthalmologist Louis Emile Javal, began using ocular exercises to treat strabismus (squint) and described the practice ... Primary activities Ocular motility diagnosis & co-management Vision screening. In the UK all school vision screening programmes ...
Parinaud's syndrome
It has less commonly been associated with spasm of accommodation on attempted upward gaze, pseudoabducens palsy (also known as ... see-saw nystagmus and associated ocular motility deficits including skew deviation, oculomotor nerve palsy, trochlear nerve ...
List of MeSH codes (G11)
... accommodation, ocular MeSH G11.697.716.154 - adaptation, ocular MeSH G11.697.716.154.371 - dark adaptation MeSH G11.697.716.182 ... ocular MeSH G11.697.677.330 - evoked potentials, visual MeSH G11.697.677.340 - eye color MeSH G11.697.677.360 - figural ... ocular MeSH G11.697.677.911 - vision MeSH G11.697.677.911.500 - phosphenes MeSH G11.697.677.911.700 - vision, binocular MeSH ... vestibulo-ocular MeSH G11.561.730.869 - startle reaction MeSH G11.561.796.255 - gravity perception MeSH G11.561.796.263 - ...
Lea test
... and ocular function and accommodation (eye). The first version of the LEA test was developed in 1976 by Finnish pediatric ...
List of ICD-9 codes 320-389: diseases of the nervous system and sense organs
... juvenile and presenile cataract 366.1 Senile cataract 366.2 Traumatic cataract 366.3 Cataract secondary to ocular disorders ... with other disorders 366.5 After-cataract 366.8 Other cataract 366.9 Unspecified 367 Disorders of refraction and accommodation ... and with systemic syndromes 365.5 Glaucoma associated with disorders of the lens 365.6 Glaucoma associated with other ocular ... 367.1 Myopia 367.2 Astigmatism 367.3 Anisometropia and aniseikonia 367.4 Presbyopia 367.5 Disorders of accommodation 367.8 ...
Ernest Maddox
Accommodation and Convergence of the Eyes (1882) Tests and Studies of the Ocular Muscles (1898) Golden Rules of Refraction ( ...
Vision in fish
Accommodation is the process by which the vertebrate eye adjusts focus on an object as it moves closer or further away. Whereas ... The human vestibulo-ocular reflex is a reflex eye movement that stabilises images on the retina during head movement by ... Accommodation refers to the process through which the vertebrate eye adjusts its focus on any particular object as it moves ... On the other hand, fish usually achieve accommodation by moving the lens closer to or further from the retina. There is a need ...
Chromostereopsis
... given that ocular optics are not achromatic and red objects require more accommodation to be focused on the retina. This notion ... This induced ocular disparity makes blue rays appear to come from a more distant source than red rays. Chromostereopsis may ... Modern accounts of chromatic aberrations divide ocular chromatic aberrations into two main categories; longitudinal chromatic ... blue rays are refracted more than red rays by the ocular media, their foci not only lie at different levels (chromatic ...
Accommodation reflex
ISBN 978-81-312-1132-8. Accommodation at Georgia State University Ocular+Accommodation at the US National Library of Medicine ... Three regions make up the accommodation neural circuit, the afferent limb, the efferent limb and the ocular motor neurons that ... The accommodation reflex (or accommodation-convergence reflex) is a reflex action of the eye, in response to focusing on a near ... During the accommodation reflex, the pupil constricts to increase the depth of focus of the eye by blocking the light scattered ...
Accommodation (eye)
ISBN 978-0-7506-7524-6. oph/723 at eMedicine-"Presbyopia: Cause and Treatment" Ocular+Accommodation at the US National Library ... Excessive accommodation and spasm of accommodation are types of increased accommodation. Presbyopia, physiological ... It can be broadly classified into two, decreased accommodation and increased accommodation. Decreased accommodation may occur ... Accommodation usually acts like a reflex, including part of the accommodation-vergence reflex, but it can also be consciously ...
Carl von Hess
... (7 March 1863 in Mainz - 28 June 1923 in Possenhofen) was a German ophthalmologist known for his work in ocular ... Die Refraktion und Akkommodation des menschlichen Auges und ihre Anomalien, 1902 - Refraction and accommodation of the human ... He made significant contributions in his studies of refraction and accommodation of the eye. He also conducted research on ...
Spasm of accommodation
... from PRESERVATIVES FROM THE EYE DROPS AND THE OCULAR SURFACE In fact, none of the cycloplegic drops used to treat Spasm of ... A spasm of accommodation (also known as a ciliary spasm, an accommodation, or accommodative spasm) is a condition in which the ... attenuates eye fatigue by improving visual accommodation" For routine cases of spasm of accommodation, the American Optometric ... Normal Amplitude of accommodation and Near point of convergence Reduced Negative relative accommodation Difficulty clearing ...
Capsule of lens
2009). "Lens". Ocular pathology. Sassani, Joseph W. (6th ed.). Edinburgh: Mosby/Elsevier. ISBN 978-0-323-04232-1. OCLC ... The process of changing lens power to see near clearly is known as accommodation. Early embryologic development of lens capsule ... Snell, Richard S. (2012). "Development of the Eye and the Ocular Appendages". Clinical anatomy of the eye. Lemp, Michael A. ( ...
Neonatal conjunctivitis
List of systemic diseases with ocular manifestations. References[edit]. *^ a b c Matejcek, A; Goldman, RD (November 2013). " ...
রাতকানা - উইকিপিডিয়া
Ocular ischemic syndrome / Central retinal vein occlusion. *Central retinal artery occlusion. *Retinopathy *diabetic ...
Schlemm's canal
Ocular hypertension. References[edit]. *^ Cassin, B. and Solomon, S. Dictionary of Eye Terminology. Gainesville, Florida: Triad ... "A lymphatic defect causes ocular hypertension and glaucoma in mice". The Journal of Clinical Investigation. 124: 4320-24. doi ...
Corneal dystrophy
Patient remains asymptomatic until epithelial erosions precipitate acute episodes of ocular hyperemia, pain, and photophobia. ...
Kayser-Fleischer ring
Ocular ischemic syndrome / Central retinal vein occlusion. *Central retinal artery occlusion. *Branch retinal artery occlusion ...
Conjunctivitis
Hodge C, Lawless M (July 2008). "Ocular emergencies". Aust Fam Physician. 37 (7): 506-9. PMID 18592066.. ... Jimmy D. Bartlett; Siret D. Jaanus (2008). Clinical Ocular Pharmacology. Elsevier Health Sciences. pp. 454-. ISBN 978-0-7506- ... they are rarely done because of the cost and the general dearth of laboratory staff experienced in handling ocular specimens. ... "The ocular application of povidone-iodine". Community Eye Health / International Centre for Eye Health. 16 (46): 30-1. PMC ...
Anglo-Saxons
These 'tun' consisted of a series of buildings designed to provide short-term accommodation for the king and his household. It ... Ocular Agency in early Anglo-Saxon cremation burials." Encountering images: materialities, perceptions, relations. Stockholm ...
Galant reflex
Accommodation reflex. pons/medulla: Jaw jerk reflex. *Corneal reflex. *Caloric reflex test/Vestibulo-ocular reflex/ ...
Retina
"Treatment of Leber Congenital Amaurosis Due to RPE65Mutations by Ocular Subretinal Injection of Adeno-Associated Virus Gene ...
Dream
During the accommodation phase, mental schemas self-modify by incorporating dream themes. During the emotional selection phase ... The processes involved included EEG monitoring, ocular signaling, incorporation of reality in the form of red light stimuli and ... dreams test prior schema accommodations. Those that appear adaptive are retained, while those that appear maladaptive are ...
Bietti's crystalline dystrophy
Ocular ischemic syndrome / Central retinal vein occlusion. *Central retinal artery occlusion. *Branch retinal artery occlusion ...
Keratoconjunctivitis
Ocular ischemic syndrome / Central retinal vein occlusion. *Central retinal artery occlusion. *Branch retinal artery occlusion ...
Color blindness
Ocular ischemic syndrome / Central retinal vein occlusion. *Central retinal artery occlusion. *Branch retinal artery occlusion ...
Madarosis
... especially when used to treat ocular tumors. ... Accommodation. Paralytic strabismus. *Ophthalmoparesis. * ...
Sensory nervous system
Ocular immune system. *Optical coherence tomography. *Eye care professional. *Eye disease. *Refractive error ...
Levobunolol
It is used topically in the form of eye drops to manage ocular hypertension (high pressure in the eye) and open-angle glaucoma. ... Like other beta blockers, and unlike the anti-glaucoma medication pilocarpine, levobunolol has no effect on accommodation and ... "Comparison of the effects of topical levobunolol and timolol solution on the human ocular surface". Cornea. 22 (8): 709-15. doi ...
Blurred vision
Accommodation tends to decrease with age.). *Cataracts-Cloudiness over the eye's lens, causing poor night-time vision, halos ... Blurred vision is an ocular symptom. The small print in an ingredients list is clear to healthy young eyes ...
Childhood blindness
Eye care/screening for children within primary health care is important as catching ocular disease issues can lead to better ...
Pupillary light reflex
Accommodation reflex. pons/medulla: Jaw jerk reflex. *Corneal reflex. *Caloric reflex test/Vestibulo-ocular reflex/ ...
Photoreceptor cell
Lucas, Robert J.; Douglas, Ronald H.; Foster, Russell G. (2001). "Characterization of an ocular photopigment capable of driving ...
Vogt-Koyanagi-Harada disease
... previous ocular penetrating trauma or surgery, and other concomitant ocular disease similar to VKH disease.[2][6][11] ... glaucoma and ocular hypertension.[2][3][5][6] Full-blown recurrences are, however, rare after the acute stage is over.[8] ... ocular complications may require an subtenon[6] or intravitreous injection of corticosteroids[4][6] or bevacizumab.[9] In ... Ocular MRI may be helpful[6] and auditory symptoms should undergo audiologic testing.[6] Histopathology findings from eye and ...
Retina horizontal cell
Ocular immune system. *Optical coherence tomography. *Eye care professional. *Eye disease. *Refractive error ...
Visual system
"Parasympathetic Ocular Control - Functional Subdivisions and Circuitry of the Avian Nucleus of Edinger-Westphal."Science Direct ... Anterior, posterior and medial pretectal nuclei inhibit pain (indirectly), aid in REM, and aid the accommodation reflex, ... nerve impulses in the ocular system of the central nervous system. In the presence of light, the retinal molecule changes ... Nuclei of the optic tract are involved in smooth pursuit eye movement and the accommodation reflex, as well as REM. ...
Iris dilator muscle
Ocular immune system. *Optical coherence tomography. *Eye care professional. *Eye disease. *Refractive error ...
Stroma of cornea
Ocular immune system. *Optical coherence tomography. *Eye care professional. *Eye disease. *Refractive error ...
Color blindness
Fraunfelder, Frederick T.; Fraunfelder, Frederick W.; Chambers, Wiley A. (2014). Drug-Induced Ocular Side Effects: Clinical ... Ocular Toxicology E-Book. Elsevier Health Sciences. p. 79. ISBN 978-0-323-31985-0. .. ...
Ectopia lentis
List of systemic diseases with ocular manifestations. References[edit]. *^ Ketring, Kerry I. (2006). "Emergency Treatment for ... This type causes fewer problems than anterior lens luxation, although glaucoma or ocular inflammation may occur. Surgery is ... leading to an obstruction of outflow of aqueous humour and subsequent increase in ocular pressure (glaucoma).[1] Better ...
Retinitis pigmentosa
Berson, E. L.; Rosner, B; Sandberg, M. A.; Weigel-Difranco, C; Dryja, T. P. (1991). "Ocular findings in patients with autosomal ... Berson, Eliot L.; Rosner, B; Sandberg, M. A.; Dryja, T. P. (1991). "Ocular Findings in Patients with Autosomal Dominant ...
Accommodation | ocular | Britannica.com
The initial stimulus for accommodation is a blurred visual image that first reaches the visual cortex. Through a series of ... In human eye: Accommodation. The image of an object brought close to the eye would be formed behind the retina if there were no ... Second, the focus (accommodation) of the eyes must be adjusted for near vision. The link between convergence of the eyes and ... The initial stimulus for accommodation is a blurred visual image that first reaches the visual cortex. Through a series of ...
Ocular Accommodation, Convergence, and Fixation Disparity A Manual of Clinical Analysis | Rent 9780409903065 | 040990306X
Accommodation, Ocular | Profiles RNS
Ocular" by people in this website by year, and whether "Accommodation, Ocular" was a major or minor topic of these publications ... Ocular accommodation is the effecting of refractive changes by changes in the shape of the CRYSTALLINE LENS. Loosely, it refers ... "Accommodation, Ocular" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH (Medical ... Below are the most recent publications written about "Accommodation, Ocular" by people in Profiles. ...
Potential Signal to Accommodation From the Stiles-Crawford Effect and Ocular Monochromatic Aberrations Available in the Shape...
Potential Signal to Accommodation From the Stiles-Crawford Effect and Ocular Monochromatic Aberrations Available in the Shape ... Potential Signal to Accommodation From the Stiles-Crawford Effect and Ocular Monochromatic Aberrations Available in the Shape ... Potential Signal to Accommodation From the Stiles-Crawford Effect and Ocular Monochromatic Aberrations Available in the Shape ... Results:: Accommodation did not differ significantly from that in the control condition for the SC condition (F = 0.32, p = .59 ...
Ocular accommodation | Psychology Wiki | Fandom
1986). Ocular accommodation in chickens: Corneal vs lenticular accommodation and effect of age: Vision Research Vol 26(11) 1986 ... Spasm of accommodation. References[edit , edit source]. *↑ Schachar RA. The mechanism of accommodation and presbyopia. ... Gawron, V. J., Paap, K. R., & Malmstrom, F. V. (1985). The effects of task performance on ocular accommodation and perceived ... Simmers, A. J., Gray, L. S., & Wilkins, A. J. (2001). The influence of tinted lenses upon ocular accommodation: Vision Research ...
The influence of downward gaze and accommodation on ocular aberrations over time | JOV | ARVO Journals
... no accommodation (0.2 D) in primary gaze, (ii) no accommodation (0.2 D) in downward gaze, (iii) 2.5-D accommodation in primary ... we aimed to investigate changes in ocular aberrations associated with accommodation in downward gaze. We measured ocular ... 2002). Changes of ocular aberration with accommodation. American Journal of Ophthalmology, 134, 924-926. [CrossRef] [PubMed] ... Accommodation is known to cause substantial changes in some aspects of ocular aberrations. These changes typically include a ...
Ill-sustained accommodation | definition of ill-sustained accommodation by Medical dictionary
What is ill-sustained accommodation? Meaning of ill-sustained accommodation medical term. What does ill-sustained accommodation ... Looking for online definition of ill-sustained accommodation in the Medical Dictionary? ill-sustained accommodation explanation ... spectacle accommodation The amplitude of accommodation referred to the spectacle plane. Symbol: As. See ocular accommodation.. ... tonic accommodation See resting state of accommodation.. vergence accommodation See convergence accommodation.. Fig. A4 A ...
Ocular and Visual Physiology - Clinical Application | Simon E. Skalicky | Springer
... succinct and well-written textbook to objectively cover the subject of ocular and visual physiology. Ocular and visual ... Ocular and Visual Physiology. Book Subtitle. Clinical Application. Authors. * Simon E. Skalicky ... Ocular and visual physiology is a core knowledge component for these disciplines, and yet is often difficult to understand. ... Ocular and Visual Physiology - Clinical Application is essential reading for any one hoping to have a clear understanding of ...
Search | Britannica.com
Vision, Ocular-Motor and Movement Strategies for Integrated Learning in Pediatrics - Education Resources
SUGGESTED ACCOMMODATION. Hilton Garden Inn - Dallas Market Center. 2325 North Stemmons Freeway. Dallas, TX 75207. Directions ... Vision, Ocular-Motor and Movement Strategies for Integrated Learning in Pediatrics. June Smith. ... Assess and interpret how vision and ocular-motor dysfunction can impact learning and describe at least three strategies to ... Movement-based therapeutic strategies and ocular-motor assessment will be incorporated through case study review for effective ...
Accommodative and Vergence Findings in Ocular Myasthenia: A... : Journal of Neuro-Ophthalmology
Accommodation, Accommodative insufficiency, Binocular vision, Convergence, Convergence insufficiency, Fatigue, Myasthenia ... Accommodative and Vergence Findings in Ocular Myasthenia: PDF Only. Cooper Jeffrey MS OD; Pollak, Gayle J. OD; Ciuffreda, ... Accommodative and Vergence Findings in Ocular Myasthenia: A Case Analysis Journal of Neuro-Ophthalmology20(1):5-11, March 2000 ... Validity of Forced Eyelid Closure Test: A Novel Clinical Screening Test for Ocular Myasthenia Gravis ...
Ocular and Visual Physiology | SpringerLink
Ocular and visual physiology is a core knowledge component for these disciplines, and yet is often difficult to understand. ... Ocular and Visual Physiology - Clinical Application is essential reading for any one hoping to have a clear understanding of ... Anterior and Posterior Eye Ocular Movements Visual Electrophysiology Visual Pathway Visual Perception ... succinct and well-written textbook to objectively cover the subject of ocular and visual physiology. ...
Myobloc Side Effects in Detail - Drugs.com
Connecting Contact Lenses and Digital Technology - Study Results - ClinicalTrials.gov
Ocular Accommodation. Convergence, Excess. Interventions Device: Test Daily Disposable Soft Contact Lenses. Device: Control ... Lag of Accommodation while wearing ... Lag of Accommodation while wearing ... Arm/Group Description: Lag of Accommodation while ... Since accommodative response was measured monocularly, this eliminated any convergent accommodation, but this was consistent ... The clinical aspects of accommodation and convergence. Am J Optom 1944; 21:301-13. ...
Journal of Refractive Surgery | September 2008 Issue
Sumavel DosePro Side Effects: Common, Severe, Long Term - Drugs.com
Browse subjects: reformers great britain biography | The Online Books Page
The relationship between high-order aberration and anterior ocular biometry during accommodation in young healthy adults<...
The changes in the anterior ocular parameters during 4-D accommodation were similar to those for the 2-D accommodation. Z04 ... The changes in the anterior ocular parameters during 4-D accommodation were similar to those for the 2-D accommodation. Z04 ... The changes in the anterior ocular parameters during 4-D accommodation were similar to those for the 2-D accommodation. Z04 ... The changes in the anterior ocular parameters during 4-D accommodation were similar to those for the 2-D accommodation. Z04 ...
Target spatial frequency determines the response to conflicting defocus- and convergence-driven accommodative stimuli
Accommodation, Ocular* * Adult * Asthenopia / physiopathology* * Asthenopia / psychology * Convergence, Ocular* * Depth ... Under the low-conflict conditions accommodation was stable, but convergence-driven accommodation was dominant when the target ... It is proposed that defocus-driven accommodation becomes weak when the target comprises low spatial frequency components. Large ... Under the high-conflict conditions the role of convergence-driven accommodation increased systematically with the degree of ...
Visual function and academic performance
Changes in in vivo confocal microscopic findings of ocular surface squamous neoplasia during treatment with topical interferon...
... findings of ocular surface squamous neoplasia (OSSN) during treatment with topical interferon alfa-2b (IFN alfa-2... ... Accommodation, Ocular. The dioptric adjustment of the EYE (to attain maximal sharpness of retinal imagery for an object of ... Ocular accommodation is the effecting of refractive changes by changes in the shape of the CRYSTALLINE LENS. Loosely, it refers ... Ocular surface squamous neoplasia (OSSN) is the most common non-pigmented malignancy of the ocular surface and is represented ...
Heterophoria - Wikipedia
Cycloplegia - Wikipedia
Nervous System | Encyclopedia.com
Ocular muscle proprioception. Eye movement Eyelid elevation Contraction of iris Accommodation of lens. ... Ocular muscle proprioception. Eye movement. VII. Facial. Pons. Taste (anterior two-thirds of tongue). Muscle movement of face, ... Ocular muscle proprioception. Eye movement. V. Trigeminal. Midbrain and pons. Touch, pain, and temperature sensation from face ...
Tribenzor Side Effects in Detail - Drugs.com
Dr Nicola Szostek - University of Plymouth
... the University of Plymouth to undertake a postgraduate research position studying for a PhD entitled; Ocular Accommodation in ... Accommodation and presbyopia *Clinical uses of the Accommodative Facility Test. *Ageing of the crystalline lens and ciliary ... Application advice Exchange opportunities Country guides Advice for international students Accommodation Business. Professional ... Courses Undergraduate Postgraduate Postgraduate research Professional development Student life Accommodation Visit virtual open ...
Search | IOVS | ARVO Journals
Ocular Anterior Segment Biometry and High-Order Wavefront Aberrations During Accommodation PDF ... Synchronized Real Time Imaging of Ocular Anterior Segment Biometry and Ciliary Muscle during Accommodation ... Relationships between the Aberrations and the Morphology of Ocular Anterior Segment during Accommodation ... TAGS: visual accommodation, biometry, lens, crystalline, lens (device), eye, ciliary muscle, capillary malformation Invest. ...
Services & Facilities
Ocular Alignment Test. Eye Health Assesment. Vision Assessment. Depth Perception Test. Accommodation Test. Management & ... Cirrus HD Ocular Coherence Tomography (OCT). The OCT is an advanced retinal imaging system that is capable of producing 3 ... Lenstar Ocular Biometry The Lenstar is useful in monitoring the progression of myopia as it provides precise, consistent and ... NP Optometry Centre is equipped with the Lenstar Ocular Biometer that can accurately measure the length of your childs eye. ...
Ocular manifestations of ataxia-telangiectasia. - PubMed - NCBI
Ocular motor abnormalities, especially strabismus, are a common finding in A-T. Poor accommodation and abnormal eye movements ... Ocular manifestations of ataxia-telangiectasia.. Farr AK1, Shalev B, Crawford TO, Lederman HM, Winkelstein JA, Repka MX. ... To report the manifestations of ataxia-telangiectasia (A-T) on the ocular sensory and motor systems. ... Accommodation was deficient in the 54 patients in whom it was measured. No posterior segment vascular anomalies were detected. ...
ConvergencePresbyopiaStrabismusRefractive ErrorAberrationsIncreased during aBiometryRefractionIntra-ocular pComplete ocular examinationFindingsDisordersMyopiaCrystallinePhysiologyMovementsMeSHMotilityCiliary bodyContraindicationsCorneaAstigmatism2002CataractAccommodativeHumansOpticalLongitudinalInvention relatesPharmacologyAntigensAssessmentMusclesEmmetropizationClinicalPathologyLens AccommodationTissuesVivoNystagmusRetinalAmblyopiaAxialPatientsDistancesExaminationVisionVisualCuesReactive to light and accommodationEfficacySecondaryManifestationsTensionSurface
Convergence12
- The ciliary effect is called accommodation (focusing the lens for near or far vision), and the rectus effect is called convergence (moving the entire eyeball). (britannica.com)
- Goss, David A. is the author of 'Ocular Accommodation, Convergence, and Fixation Disparity A Manual of Clinical Analysis' with ISBN 9780409903065 and ISBN 040990306X. (valorebooks.com)
- The hypothesis was examined by measuring accommodation and convergence continuously with a Shin-Nippon SRW5000 infrared autorefractor and a limbus tracking device. (nih.gov)
- Subjects viewed a high contrast Maltese Cross target at three levels of Gaussian filter target blur under conditions of relatively low- and high-conflict between accommodation and convergence stimuli, the latter inducing the sensation of stereopsis. (nih.gov)
- Under the low-conflict conditions accommodation was stable, but convergence-driven accommodation was dominant when the target was extremely blurred. (nih.gov)
- Under the high-conflict conditions the role of convergence-driven accommodation increased systematically with the degree of target blur. (nih.gov)
- The accommodation reflex (or accommodation-convergence reflex) is a reflex action of the eye, in response to focusing on a near object, then looking at a distant object (and vice versa), comprising coordinated changes in vergence, lens shape (accommodation) and pupil size. (wikipedia.org)
- It must be distinguished from other forms of esotropia, usually by a trial of eyeglasses or occasionally by trying cholinesterase-inhibiting eye drops, which facilitate accommodation and thus lessen convergence. (healio.com)
- In esotropia with a high AC /A ratio, there is an inappropriate amount of convergence for each unit of accommodation, causing the eyes to turn inward at near focus. (healio.com)
- Vergence accommodation refers to that accommodation driven by the neurological crosslink from fusional (i.e., disparity) vergence to accommodation per the convergence accommodation-to-convergence ratio. (thefreelibrary.com)
- Additionally, the patient manifested a markedly reduced accommodative convergence-to-accommodation (AC/A) ratio (1.33:1) that returned to normal (3:1) without treatment 18 months after the injury [17]. (thefreelibrary.com)
- Prefrontal cortex activity evoked by convergence load under conflicting stimulus-to-accommodation and stimulus-to-vergence eye-movements measured by NIRS : Prefrontal cortex oxygenation and visual fatigue. (hig.se)
Presbyopia5
- Research has clearly shown that there are many applications involving these aberrations with diagnosis, treatment, and management of disorders, such as myopia, corneal disorders, presbyopia, cataract, and intraocular lens application and the dynamic changes in refractive state and retinal image quality produced by tear film thinning and accommodation. (lww.com)
- The primary aim of this thesis was to investigate the in vivo ocular morphological and contractile changes occurring within the accommodative apparatus prior to the onset of presbyopia, with particular reference to ciliary muscle changes with age and the origin of a myopic shift in refraction during incipient presbyopia. (bl.uk)
- Cross-sectional ocular biometric data were collected to quantify accommodative axial length changes from early adulthood to advanced presbyopia (n=72). (bl.uk)
- Accommodative axial length elongation significantly attenuated during presbyopia, which was consistent with a significant increase in ocular rigidity during presbyopia. (bl.uk)
- The studies presented in this thesis support the Helmholtz theory of accommodation and despite the reduction in centripetal ciliary muscle contractile response with age, primarily implicate lenticular changes in the development of presbyopia. (bl.uk)
Strabismus2
- Ocular motor abnormalities, especially strabismus, are a common finding in A-T. Poor accommodation and abnormal eye movements may lead to reading difficulty reported by patients with A-T. (nih.gov)
- Any disruptive factor that prevents the eyes from seeing equally, fusing their images, or working together (coordination), whether it be an imbalance of refractive errors between the eyes (anisometropia), a lens opacity obstructing normal vision (cataract), or an ocular misalignment (strabismus), can potentially cause loss of vision (amblyopia). (healio.com)
Refractive Error3
- Refractive error and ocular dimensions were measured at the start of treatment and every week thereafter. (arvojournals.org)
- Comparison of ocular component growth curves among refractive error groups in children. (osu.edu)
- First, complete ocular examination, including determination of refractive error and examination for the presence or absence of disease, could not be performed reliably on a large number of patients in the short time period between admission to the hospital facility and surgery. (asahq.org)
Aberrations10
- The purpose of this study was to determine if characteristic patterns in the intensity distribution of the defocused retinal image due to the Stiles-Crawford (SC) effect and the eye's monochromatic aberrations can provide a signal to accommodation in these conditions. (arvojournals.org)
- Ocular monochromatic aberrations through the fifth Zernike order were measured with a COAS aberrometer for a 2 D accommodative demand. (arvojournals.org)
- For a 3-mm pupil, characteristic patterns in the intensity distribution of the defocused point spread function due to the SC effect or monochromatic aberrations do not provide an 'achromatic cue' to accommodation. (arvojournals.org)
- A Shack-Hartmann wavefront sensor was modified to allow measurement of ocular aberrations in downward gaze with binocular fixation. (arvojournals.org)
- Immediately after beginning and then again 5 and 10 min after the commencement of each trial, ocular aberrations were measured. (arvojournals.org)
- To observe the recovery in ocular aberrations following each test condition, subjects again viewed a distance target in primary gaze and aberration measurements were taken at 0, 5, and 10 min. (arvojournals.org)
- The changes in ocular aberrations that occurred in downward gaze recovered almost immediately after shifting gaze from downward back to primary gaze. (arvojournals.org)
- These findings show that ocular aberrations change from primary to downward gaze, particularly during accommodation. (arvojournals.org)
- Accommodation is known to cause substantial changes in some aspects of ocular aberrations. (arvojournals.org)
- A customized system was built to simultaneously capture images of ocular wavefront aberrations and anterior ocular biometry. (elsevier.com)
Increased during a1
- While the tension on equatorial zonules is increased during accommodation, the anterior and posterior zonules are simultaneously relaxing. (wikia.org)
Biometry3
- The anterior ocular biometry changed during 2-D accommodation, in which central lens thickness, ciliary muscle thicknesses at 1 mm posterior to the scleral spur (CMT1), and the maximum value of ciliary muscle thickness increased significantly, whereas anterior chamber depth, CMT3, radius of anterior lens surface curvature (RAL), and radius of posterior lens surface curvature (RPL) decreased significantly. (elsevier.com)
- Additionally, longitudinal measurement of ocular biometry revealed a significant increase in crystalline lens thickness and a corresponding decrease in anterior chamber depth after 2.5 years (n=51). (bl.uk)
- The change in ocular biometry per dioptre of accommodation exerted remained invariant after 2.5 years. (bl.uk)
Refraction1
- Donders FC (1864) On the anomalies of accommodation and refraction of the eye with a preliminary essay on physiological dioptrics. (springer.com)
Intra-ocular p5
- The literature on intra-ocular pressure dynamics is reviewed, including tonometer design and calibration, the influence of corneal-scleral mechanics, and scleral rigidity factors. (omicsonline.org)
- It is important to determine the intra-ocular pressure, the fluid pressure inside the eye, in order to evaluate for patients at risk from glaucoma, because of potential damage to the optic nerve [ 1 , 2 ]. (omicsonline.org)
- 11 - 13 ] discussed ROP (often associated with rapid juvenile myopia rates) and glaucoma related studies.Direct and remote intra-ocular pressure measuring techniques were reviewed by Downs [ 14 ], Nuyen et al. (omicsonline.org)
- 15 ] reported 24 h fluctuations of intra-ocular pressure, measured with an instrumented contact lens. (omicsonline.org)
- increased intra-ocular pressure. (mims.com)
Complete ocular examination1
- In four, complete ocular examination was not possible because of cataract. (bmj.com)
Findings3
- Changes in in vivo confocal microscopic findings of ocular surface squamous neoplasia during treatment with topical interferon alfa-2b. (bioportfolio.com)
- To evaluate in vivo confocal microscopy (IVCM) findings of ocular surface squamous neoplasia (OSSN) during treatment with topical interferon alfa-2b (IFN alfa-2b). (bioportfolio.com)
- In the remainder, none of the ocular findings was directly attributable to hydroxychloroquine. (bmj.com)
Disorders3
- Ocular inflammation may take the form of numerous eye disorders of varying severity depending on the location of the inflammation. (google.com)
- Uveitis is typical of these ocular disorders, and is characterized by inflammation of the uveal tract, which encompasses the iris, ciliary body, and choroid. (google.com)
- 3. Amano Y, Sugimoto Y, Sugita M. Ocular disorders due to eyelash extensions. (clspectrum.com)
Myopia2
- Induced negative lens defocus results in accelerated ocular elongation and myopia. (arvojournals.org)
- 6. Berntsen DA, Sinnott LT, Mutti DO, Zadnik K. A randomized trial using progressive addition lenses to evaluate theories of myopia progression in children with a high lag of accommodation. (clspectrum.com)
Crystalline8
- Ocular accommodation is the effecting of refractive changes by changes in the shape of the CRYSTALLINE LENS. (umassmed.edu)
- [3] [4] The same shape changes that occur to the crystalline lens during accommodation are observed when equatorial tension is applied to any encapsulated biconvex object that encloses a minimally compressible material (volume change less than approximately 3%) and has an elliptical profile with an aspect ratio ≤ 0.6 (minor axis/major axis ratio). (wikia.org)
- This explains why the aspect ratio of a vertebrate crystalline lens can be used to predict the qualitative amplitude of accommodation of the vertebrate eye. (wikia.org)
- Accommodation refers to the change in shape and curvature of the crystalline lens of the eye that occurs when an individual attempts to obtain and maintain a focused, high-resolution retinal image of an object of regard [1], including changing focus from far-to-near and near-to-far. (thefreelibrary.com)
- During accommodation, a significant increase in crystalline lens thickness and axial length was observed, whereas anterior chamber depth decreased (n=20). (bl.uk)
- A cataract refers to any opacity of the ocular crystalline lens. (google.com.au)
- The normal crystalline lens is transparent, refractive, and provides adequate accommodation (shape change) to transmit and focus light on the retina at various distances. (google.com.au)
- Accommodation in the human eye occurs through controlled changes in crystalline lens shape, thickness, and refractive surface placement relative to the cornea. (google.com.au)
Physiology3
- This book meets the growing demand among ophthalmologists, optometrists and orthoptists, in training and in practice, as well as visual neuroscientists, to have a clear, succinct and well-written textbook to objectively cover the subject of ocular and visual physiology. (springer.com)
- Ocular and visual physiology is a core knowledge component for these disciplines, and yet is often difficult to understand. (springer.com)
- Ocular and Visual Physiology - Clinical Application is essential reading for any one hoping to have a clear understanding of the subject. (springer.com)
Movements1
- Pupils were 3 mm in diameter, equal, and reactive to light and accommodation Extraocular movements were full. (bmj.com)
MeSH1
- Accommodation, Ocular" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (umassmed.edu)
Motility1
- An assessment of accommodation, ocular motility, and binocular vision determines how well your eyes focus, move and work together. (aoa.org)
Ciliary body1
- In ocular bacterial infection, endotoxin (the lipopolysaccharide component of gram negative bacteria) produces ocular inflammation as indicated by conjunctival and iridial hyperemia, breakdown of blood aqueous barrier and polymorphonuclear neutrophil infiltration into the aqueous humor and iris ciliary body. (google.com)
Contraindications1
- Should a relapse occur after medication is withdrawn, therapy may be resumed or continued on an intermittent schedule if there are no ocular contraindications. (wikidoc.org)
Cornea1
- During the accommodation reflex, the pupil constricts to increase the depth of focus of the eye by blocking the light scattered by the periphery of the cornea. (wikipedia.org)
Astigmatism1
- Neck/shoulder discomfort due to visually demanding near work is influenced by previous neck pain, task duration, astigmatism, eye discomfort and accommodation. (hig.se)
20021
- Ocular Biomechanics, 2002, P. 128-136. (iitp.ru)
Cataract2
- 13 . A method that minimizes cataract formation when an agent is provided to an ocular lens, the method comprising piercing the lens with a needle of 30 gauge or thinner, introducing an agent into the lens through the needle, and withdrawing the needle from the lens. (google.com.au)
- Cataracts are most frequently associated with the normal aging process or pathology, but injury or mechanical violation of the ocular capsule surrounding the lens also causes cataract formation. (google.com.au)
Accommodative6
- Blur-driven, or reflex, accommodation likely provides a large contribution to the overall accommodative response. (thefreelibrary.com)
- Vergence accommodation also provides a large contribution to the overall accommodative response. (thefreelibrary.com)
- Lastly, tonic accommodation refers to the default accommodative response in the absence of blur, disparity, and proximal stimuli. (thefreelibrary.com)
- The previous literature has revealed three types of accommodative dysfunctions in traumatic brain injury (TBI): accommodative insufficiency, pseudomyopia/ spasm of accommodation, and dynamic accommodative infacility. (thefreelibrary.com)
- Another study found that 16 percent of a sample of 161 nonpresbyopic head injury patients manifested accommodative insufficiency, which the authors termed "poor accommodation" [12]. (thefreelibrary.com)
- furthermore, the insufficiency was confirmed with the measurement of a reduced accommodative amplitude and/or positive relative accommodation (PRA) [12]. (thefreelibrary.com)
Humans1
- They speculated that in humans such neurological deficits might lead to impairment of the oculomotor system, accommodation, and pupillary light reflex (PLR). (thefreedictionary.com)
Optical9
- Targets were viewed in a Badal optical system, though a 0.75-mm pinhole to ensure that accommodation and the eye's optics could not influence cues available in the simulations, and to preclude even-error blur cues. (arvojournals.org)
- Accommodation is the process by which the eye increases optical power to maintain a clear image ( focus ) on an object as it draws near the eye. (wikia.org)
- [1] As a consequence of the changes in lens shape during human in vivo accommodation, the central optical power of the lens increases and spherical aberration of the lens shifts in the negative direction. (wikia.org)
- High-Resolution Anterior Segment Optical Coherence Tomography in Intraepithelial Versus Invasive Ocular Surface Squamous Neoplasia. (bioportfolio.com)
- To evaluate the imaging characteristics of intraepithelial and invasive ocular surface squamous neoplasia (OSSN) on high-resolution anterior segment optical coherence tomography (ASOCT). (bioportfolio.com)
- This study investigated the anterior ocular anatomic origin of high-order aberration (HOA) components using optical coherence tomography and a Shack-Hartmann wavefront sensor. (elsevier.com)
- In another approach, bifocal lenses assist accommodation by integrating two different optical corrections onto the same lens. (google.co.uk)
- Optical defocus influences postnatal ocular development in animal models. (arvojournals.org)
- Induced defocus from optical lenses has been demonstrated, in a variety of vertebrate species, to result in altered ocular growth in an attempt by the eye to attain functional emmetropia. (arvojournals.org)
Longitudinal2
- It is shown that trained observers change their level of accommodation, when viewing a target at a constant distance, to compensate for the varying ocular longitudinal chromatic aberration as the color of the target is changed. (osapublishing.org)
- Dynamic aspects of these effects are illustrated and it is shown that the ocular longitudinal chromatic aberration increases slightly with accommodation. (osapublishing.org)
Invention relates2
- The invention relates to ocular wavefront-correction profiling. (google.co.uk)
- The present invention relates to the treatment of ocular inflammation. (google.com)
Pharmacology2
- Nicola has taught across all three years of the optometry programme and on postgraduate modules, she has a specialist interests in teaching ocular pharmacology and disease, law and ethics and clinical case management. (plymouth.ac.uk)
- Clinical Ocular Pharmacology, fifth edition. (ico.edu)
Antigens1
- Ocular manifestations secondary to various NEOPLASMS in which antibodies to antigens of the primary tumor cross-react with ocular antigens. (bioportfolio.com)
Assessment2
- Confocal microscopy is a new, emerging, noninvasive technology that can aid in the in vivo assessment of structural changes in several ocular surface diseases at the cellular level. (bioportfolio.com)
- An ocular assessment or evaluation from an ophthalmologist. (una.edu)
Muscles1
- The ciliary muscles are responsible for the lens accommodation response. (wikipedia.org)
Emmetropization1
- Ocular component changes and accommodation during emmetropization in infants. (osu.edu)
Clinical16
- Clinical Management of Ocular Surface Squamous Neoplasia: A Review of the Current Evidence. (bioportfolio.com)
- Download Clinical Ocular Toxicology. (windhover.org)
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- After pages of download clinical ocular, Ross and Carrie have the Self Realization Fellowship Convocation, where they are to have better, Platinum for approaches at a course, Do to get additional behaviors to add, and text with rooms. (windhover.org)
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Pathology1
- Hence, this paper provides a general overview of (1) the visual signs and symptoms of PD, (2) the areas of the eye and brain which may be affected by the pathology of PD, and (3) the adverse ocular reactions to treatment. (hindawi.com)
Lens Accommodation1
- Temporal co-variation between eye lens accommodation and trapezius muscle activity during a dynamic near-far visual task. (hig.se)
Tissues1
- It accumulated selectively in the melanin structures of the fetal eyes and was retained in the ocular tissues for five months after the drug had been eliminated from the rest of the body. (nih.gov)
Vivo1
- Helmholtz's theory of accommodation is inconsistent with the well-documented flattening of the anterior peripheral surfaces of the lens and negative shift of spherical aberration that occurs during human in vivo accommodation. (wikia.org)
Nystagmus2
- There was no spontaneous or gaze nystagmus, saccadic pursuit, or ocular dysmetria. (bmj.com)
- What is the Difference between Nystagmus and Ocular Motor Apraxia? (pediatriceducation.org)
Retinal2
- Blur-driven accommodation involves the typically automatic focusing ability when one changes fixation from one object to another in depth in response to the correlated blurred retinal image. (thefreelibrary.com)
- Stereoscopic retinal scanning laser display with integrated focus cues for ocular accommodation. (washington.edu)
Amblyopia1
- Static aspects of accommodation in human amblyopia. (semanticscholar.org)
Axial1
- In the most frequently studied model of ocular growth and refractive development, the chick, it has been demonstrated that the rate of ocular growth can be manipulated to bring about compensation for a wide range of lens-induced defocus (−10 D to +15 D), predominantly brought about by altered axial ocular dimensions. (arvojournals.org)
Patients6
- Accommodation was deficient in the 54 patients in whom it was measured. (nih.gov)
- To evaluate refractive, binocular vision and ocular alignment outcomes of photorefractive keratectomy (PRK) for the treatment of hyperopia in esotropic patients. (springer.com)
- Objective recording of accommodation dynamics was performed in four patients with divergence excess exotropia (two true and two simulated) and in three visually normal control subjects. (semanticscholar.org)
- Therefore, we performed a prospective study of a large cohort of surgical patients undergoing a variety of surgical procedures to describe and determine the frequency and natural history of postoperative changes of accommodation and visual acuity. (asahq.org)
- Patients undergoing ocular procedures and those receiving any other anesthesia services ( i.e. , monitored anesthesia care, sedation, labor analgesia, or peripheral neural block) were excluded, as were patients who could not provide appropriately informed consent, those who had worn contact lenses within 1 h of preoperative evaluation, and those who ordinarily used corrective lens but were not wearing them at the time of preoperative evaluation. (asahq.org)
- Patients who were taking ocular medications and those undergoing emergency surgical procedures also were excluded. (asahq.org)
Distances5
- Loosely, it refers to ocular adjustments for VISION, OCULAR at various distances. (umassmed.edu)
- negative accommodation adjustment of the eye for long distances by relaxation of the ciliary muscle. (thefreedictionary.com)
- positive accommodation adjustment of the eye for short distances by contraction of the ciliary muscle. (thefreedictionary.com)
- This process of selectively focusing on objects at different distances is referred to as "accommodation. (google.co.uk)
- With a binocular open view and targets at different distances, the technology measures vergence and accommodation along with standard vision screening parameters. (sbir.gov)
Examination2
Vision4
- Second, the focus ( accommodation ) of the eyes must be adjusted for near vision. (britannica.com)
- Individual variability of accommodation in children with normal acuity of far and near vision. (iitp.ru)
- Accommodation-acuity checks with a standard American Medical Association Near Vision Test Card (distance in centimeters), repeated three times for each eye. (asahq.org)
- Dr. Ciuffreda has been a member of the faculty since 1979 and has conducted innovative research in accommodation and binocular vision and has been recognized with international awards and major research grants. (sunyopt.edu)
Visual3
- The initial stimulus for accommodation is a blurred visual image that first reaches the visual cortex. (britannica.com)
- Many visual tasks such as reading and computer work involve accommodation and downward gaze. (arvojournals.org)
- This autoimmune response often leads to visual loss and other ocular dysfunctions. (bioportfolio.com)
Cues1
- Correct accommodation has been observed in the absence of cues from even-error blur and chromatic aberration, and with 3-mm pupils, suggesting the presence of an 'achromatic cue' to accommodation. (arvojournals.org)
Reactive to light and accommodation1
- HEENT showed pupils equal, round and reactive to light and accommodation. (pediatriceducation.org)
Efficacy3
- To compare the efficacy of topical 5-fluorouracil 1% (5FU) and interferon alfa-2b 1 MIU/mL (IFN) eye drops as primary treatment modalities for ocular surface squamous neoplasia (OSSN). (bioportfolio.com)
- The primary outcome was to assess the efficacy of PRK in improving ocular alignment. (springer.com)
- The threshold for consistent responses to positive lens defocus in tree shrew was between +4 and +6 D. The results will enable targeted investigation of the efficacy of positive lens defocus in inhibiting myopic ocular growth. (arvojournals.org)
Secondary1
- During the accommodation tasks, there was a significant influence of gaze for changes in primary spherical aberration C (4, 0) [ p = 0.004] and secondary spherical aberration C (6, 0) [ p = 0.02]. (arvojournals.org)
Manifestations2
Tension3
- Schachar - Ronald Schachar has contributed scientific insight into the mechanism of human accommodation, indicating that focus by the human lens is associated with increased tension on the lens via the equatorial zonules. (wikia.org)
- [2] Because of the increased equatorial zonular tension on the lens during accommodation, the stress on the lens capsule is increased and the lens remains stable and unaffected by gravity. (wikia.org)
- The accommodation tension is responsible for an increasing intra-ocular liquid production [ 36 ]. (omicsonline.org)
Surface2
- Ocular surface squamous neoplasia (OSSN) is the most common non-pigmented malignancy of the ocular surface and is represented in a wide range of histologic diagnoses, ranging from mild epithelial dysp. (bioportfolio.com)
- Comparison of topical 5-fluorouracil and interferon alfa-2b as primary treatment modalities for ocular surface squamous neoplasia. (bioportfolio.com)