Difference between Glaucoma and Cataract: Understanding Eye Health When it comes to eye health, two prevalent eye conditions that people often hear about are glaucoma (a condition affecting the optic nerve) and cataracts (a condition that clouds the eye’s lens). Each condition can greatly affect vision, but they are quite http://We ran into a problem. If you're in private mode (incognito), switch to regular browsing or try again later.