The main characteristic that distinguishes physiological anisocoria is an increase of pupil size with lower light or reduced illumination, such that the pupils differ in size between the two eyes. (wikipedia.org)
Anisocoria is the medical term that simply means the pupils are not equal. (drshalupal.com)
An eyecare practitioner will usually check the size and shape of the pupils during the early part of a comprehensive vision examination, using either a penlight (see figure 1) in normal room illumination, or with an instrument called a direct ophthalmoscope in a darkened room. (drshalupal.com)
The presence of physiologic anisocoria has been estimated at 20% of the normal population, so some degree of pupil difference may be expected in at least 1 in 5 clinic patients. (wikipedia.org)
Physiologic - Anisecoria equal in bright and dim illumination. (odpalace.com)
Pupil3
Asymmetric pupil or dyscoria, potential causes of anisocoria, refer to an abnormal shape of the pupil which can happens due to developmental and intrauterine anomalies. (wikipedia.org)
Tonic Pupil - Anisecoria that alternates, with one eye bigger in dim illumination and the other eye bigger in bright illumination. (odpalace.com)
Normal pupil size in everyday room illumination is about three to five millimeters in diameter. (drshalupal.com)
Normal1
Also noted were normal color vision, anisocoria, visual field constriction, and attenuated retinal arteries. (medscape.com)
Pupil size1
The main characteristic that distinguishes physiological anisocoria is an increase of pupil size with lower light or reduced illumination, such that the pupils differ in size between the two eyes. (wikipedia.org)
Phenomenon1
Contraction anisocoria is a phenomenon in which the pupil of a directly illuminated eye constricts more than the pupil of the contralateral eye. (medscape.com)
Patients3
At any given eye examination, up to 41% of healthy patients can show an anisocoria of 0.4 mm or more at one time or another. (wikipedia.org)
The presence of physiologic anisocoria has been estimated at 20% of the normal population, so some degree of pupil difference may be expected in at least 1 in 5 clinic patients. (wikipedia.org)
Illumination of the pupil by shining a light obliquely from below the patient's face and a handheld pupil gauge (found on most near-vision cards) assist in accurate assessment. (medscape.com)
It keeps the aggravating noon light off your back or reduces any other light as much tom clancy's rainbow six siege cheap cheat you would like to create the perfect basic illumination. (brightnewskies.com)