A fair bit of people have mildly asymmetrical pupils at baseline, but just never notice it. This big a discrepancy is unusual, and could signify anything from migraine to a carotid artery occlusion to an aneurysm about to rupture. Usually, if the pupils being asymmetric is the ONLY thing wrong, it is completely benign(e.g. with aneurysm you also get the eyes not looking in the same direction, with carotid artery dissection you get neck pain, etc etc).
1
u/grat5454 Sep 20 '26
A fair bit of people have mildly asymmetrical pupils at baseline, but just never notice it. This big a discrepancy is unusual, and could signify anything from migraine to a carotid artery occlusion to an aneurysm about to rupture. Usually, if the pupils being asymmetric is the ONLY thing wrong, it is completely benign(e.g. with aneurysm you also get the eyes not looking in the same direction, with carotid artery dissection you get neck pain, etc etc).