• miosis
  • It is characterized by miosis (a constricted pupil), partial ptosis (a weak, droopy eyelid), apparent anhidrosis (decreased sweating), with or without enophthalmos (inset eyeball). (wikipedia.org)
  • dilation
  • Three tests are useful in confirming the presence and severity of Horner syndrome: Cocaine drop test: Cocaine eyedrops block the reuptake of post-ganglionic norepinephrine resulting in the dilation of a normal pupil from retention of norepinephrine in the synapse. (wikipedia.org)
  • The extent of dilation of the pupil in the eye could be an indicator of interest and attention. (wikipedia.org)
  • Dilation of the pupils reflects an increase in mental processes, whether it be attentiveness, or psychomotor responsiveness. (wikipedia.org)
  • optic
  • When the iris muscles are normally innervated and responsive, the pupil cycle time is dependent on the speed of nerve conduction and the number and strength of optic nerve impulses. (bmj.com)
  • Our purpose was to develop and test a new paradigm for detecting optic nerve disease in one eye, independent of the fellow eye, so that patients with bilateral involvement can be diagnosed and monitored using objective pupil responses. (arvojournals.org)
  • responses
  • Visual fields were obtained using standard kinetic Goldmann perimetry and the volume of visual field sensitivity was determined and correlated with pupil responses. (arvojournals.org)
  • As part of the subcortical visual system, neurons within the pretectal nuclei respond to varying intensities of illuminance and are primarily involved in mediating non-conscious behavioral responses to acute changes in light. (wikipedia.org)
  • Held worked with Ernst Pöppel and Douglas Frost in 1983 in an experiment examining brain injured individuals who appeared blind but still showed localized responses to light. (wikipedia.org)
  • formerly
  • During its time at TV9, it had also presented its programmes for TV Pendidikan, such as: Motivasi Murid (lit: Pupil Motivation) Bijak Belajar (lit: Smart Learning) - formerly aired, first aired on TV3 in 1996 Anak Siapa Ni Eh (lit: Whose Child is This, I Wonder? (wikipedia.org)
  • ambient
  • Resulting from the author's investigations over the last decade, the book material is largely original, and the most relevant achievement can be found in the capacity to evaluate visual acuity for a range of visual conditions, such as variations in pupil size, refractive error, and ambient illumination. (spie.org)
  • Unlike
  • Unlike pupil size, which depends the interaction of multiple physiological and neuromodulatory influences, the PLR reflects the action of a simple brainstem circuit. (jneurosci.org)
  • aperture
  • Based on analogy with a camera, pupil is equivalent to aperture, whereas iris is equivalent to the shutter. (wikipedia.org)
  • diagnosis
  • The Argyll Robertson pupil became a pathognomonic sign for the diagnosis of syphilis affecting the central nervous system. (wikipedia.org)
  • therefore
  • They found that these cells are very insensitive to light, in contrast to rods, which are very sensitive and therefore enable us to see in dim light at night, for example. (medicalxpress.com)
  • size
  • Independent of examiner, an automated pupillometer eliminates variability and subjectivity, expressing pupil reactivity numerically so that both pupil size and reactivity can be trended for changes, just like other vital signs. (wikipedia.org)
  • eyes
  • Only 5% of normal persons aged 12 to 50 years are expected to have a pupil cycle time in either eye longer than 954 ms or a difference in pupil cycle time between the two eyes longer than 70 ms. (bmj.com)
  • #Mysteryyellow 💛 ☻Mystery yellow & light pupilLight yellow transition, black outer ring magnified eyes. (stagram.com)
  • The eyes have vertical pupils in bright light and are brown or golden. (wikipedia.org)
  • detect
  • A team of Johns Hopkins neuroscientists has worked out how some newly discovered light sensors in the eye detect light and communicate with the brain. (medicalxpress.com)
  • found
  • When they did the calculations, the research team found that melanopsin molecules are 5,000 times sparser than other light-capturing molecules used for image-forming vision. (medicalxpress.com)
  • They found that pupils respond to light even after vision loss. (wikipedia.org)
  • circadian
  • These melanopsin-containing cells signal light to many different parts of the brain to drive different behaviors, from setting the circadian clock to affecting mood and movement," says Do. (medicalxpress.com)
  • exam
  • The eye exam light has been used on so many medications in understanding whether there is something wrong with the eye condition. (perrlaeyes.com)
  • Function
  • Curious about how these cells bear on behavior, the researchers examined pupil constriction in mice that had been genetically altered to be free of rod and cone function in order to focus on activity resulting from only melanopsin-containing cells. (medicalxpress.com)
  • Data
  • Automated pupillometry removes subjectivity from the pupillary evaluation, providing more accurate and trendable pupil data, and allowing earlier detection of changes for more timely patient treatment. (wikipedia.org)
  • Pupil data can be automatically uploaded to the patient record, eliminating the possibility of data entry error. (wikipedia.org)
  • less
  • They also have large exit pupils making centering less critical and the narrow field of view works well in those applications. (wikipedia.org)
  • test
  • The kittens were exposed to light only under regulated test conditions to allow Held to examine the correlation between movement and sight in vision development. (wikipedia.org)
  • Held's test involved a baby being shown two patches of light in a dark room. (wikipedia.org)
  • Patients
  • Patients with cataracts may experience symptoms such as light-sensitive, and blurred vision. (perrlaeyes.com)
  • In 1869 he published a paper giving the first description of unusual reactions of the pupils to light and accommodation in patients with tabes dorsalis(syphilis affecting the spinal cord). (wikipedia.org)
  • large
  • However, once captured, the light is very effective in producing a signal large enough to go straight to the brain," says Yau. (medicalxpress.com)
  • As the years went on some modifications were made to Al, such as making it so his pupils light up red (blinking on and off), the adding of a large Red Wing Jersey to his body, and the removal of a tooth in order to give Al that "hockey player" look. (wikipedia.org)
  • time
  • Edge-light pupil cycle time. (bmj.com)
  • The pupil cycle time is remarkably stable in various testing situations and is repeatable within about +/- 3% over extended periods of time. (bmj.com)