👉 A cataract is a condition in which the lens of the eye, known as the cornea, becomes cloudy or opaque. This can cause vision problems such as blurry vision, reduced color vision, and difficulty seeing at night. Cataracts are caused by changes in the proteins that make up the lens, and they can be caused by various factors, including age, genetics, and certain medical conditions. Treatment options for cataracts include surgery to remove the cloudy or opaque part of the eye