A pupil is a hole located in the center of iris it appears black because light rays entering the pupil are either absorbed by tissues using the eye directly or absorbed after diffuse reflection within the eye that mostly misses exciting the narrow pupil function pupils a contractile structure mostly has smooth muscles surrounding the pupil light entering the eye through pupil and iris regulate the amount of light by controlling. The size of the pupil when the narrow diameter is 2 to 4 mm will approach maximum distance for a wide pupil 3 to 8 mm at the peak age of 15 dark adapted pupil vary from 4 to 9 mm with different individuals after 25 years of age average pupil size decreases.
Let us go to scenario of pupil congenital, Congenital polycoria Congenital reigers iris anomaly Blunt trauma Traumatic miosis Traumatic mydriasis Traumatic polycoria Postoperative up drawn pupil…
