Can eye color change in adults?
Yes, but that may indicate something is wrong. If one eye becomes lighter than the other, it may be a sign of a chronic inflammation called iritis, which increases the risk of cataracts, glaucoma or other degenerative eye disorders. In the condition pigmentary glaucoma, pigment from the iris can come off, which prevents eye fluid from draining. If you notice a change in eye color, see an eye doctor. Rarely, a type of eye drops for glaucoma (prostaglandin analogs) can subtly, but permanently, darken the iris. So can Latisse, a medication approved for enhancing eye lashes.