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prefix: aniso-from the Greek language (meaning: unequal), which in turn comes from an: meaning not and iso: meaning equal; the root word: cor, from the Greek word "korē" meaning: pupil of the eye-ia, which is a Latin suffix meaning: disease; pathological or abnormal condition; Thus, anisocoria means the condition of unequal pupil(s).
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. 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.
Polycoria is a pathological condition of the eye characterized by more than one pupillary opening in the iris. [1] It may be congenital or result from a disease affecting the iris. [1] It results in decreased function of the iris and pupil, affecting the physical eye and visualization.
Consider a pair of spectacles to correct for myopia with a prescription of −1.00 m −1 in one eye and −4.00 m −1 in the other. Suppose that for both eyes the other parameters are identical, namely t = 1 mm = 0.001 m, n = 1.6, P = 5 m −1, and h = 15 mm = 0.015 m.
According to one report, PEX develops in the second eye in 40% of cases. A contrasting report was that PEX can be found in both eyes in almost all situations if an electron microscope is used to examine the second eye, or if a biopsy of the conjunctiva was done, but that the extent of PEX is the second eye was much less than the first one. [4 ...
In fact, research shows a lack of sleep can slow your reaction time, cause depression and throw off your immune system and various hormone levels. “If you don’t sleep in a traditional sleep ...
One of the most common causes of plugged ear sensations is allergies. If you have allergies, your body is doing its best to fight off the allergens. This can lead to inflammation in the sinuses ...
Carbonic anhydrase inhibitors may cause stinging, burning, and eye discomfort. [10] Lubricant eye drops may cause some side effects and one should consult a doctor if pain in the eye or changes in vision occur. Furthermore, when redness occurs but lasts more than 3 days, one should immediately consult a doctor. [citation needed]