![docor for unequal pupil size docor for unequal pupil size](https://healthjade.com/wp-content/uploads/2018/11/anisocoria.jpg)
Any related incident at the time when anisocoria first presented.There are certain characteristics about anisocoria that can help physicians to understand whether the sign is indicative of an underlying condition. An adverse effect to certain medications that may enter the eyes such as inhalers.Infection of the brain membranes or meningitis.There are many possible causes for anisocoria, including: In fact, severe cases of anisocoria, such as those associated with Horner syndrome, have the potential to be life threatening.
![docor for unequal pupil size docor for unequal pupil size](https://images.onhealth.com/images/slideshow/what-eye-color-and-shape-say-about-your-health/what-eye-color-and-shape-say-about-your-health-s8-different-dilations.jpg)
However, anisocoria can also be indicative of an underlying medical condition in some cases. Most of these are what is known as physiologic anisocoria, which is mild (less than one-millimeter difference in size) and considered to be normal. Pupillary diameter varies as both irises normally constrict or dilate simultaneously according to the light in the environment.Īnisocoria is a common condition, and it is estimated that one in five individuals have anisocoria to a varying extent. Normally, the size of the pupil is identical in both eyes. Liji Thomas, MDĪnisocoria is a term that refers to an abnormal condition in which the pupils of the two eyes in the same individual are of different sizes.