Cataract surgery is done to treat cataracts. Cataracts can cause blurry vision and increase the glare from lights. If a cataract makes it difficult for you to carry out your usual activities, your health care team may suggest cataract surgery. Cataract surgery is a procedure to remove the lens of the eye and, in most cases, replace it with an artificial lens. A cataract causes the lens to become cloudy when it is typically clear. Cataracts can eventually affect vision. After cataract surgery, expect your vision to start getting better within a few days. Your vision may be blurry at first as your eye heals and adjusts. A cataract is usually yellow- or brown-tinted before surgery. This causes colors to look dull. After your surgery, colors may seem brighter because you are looking through a new, clear lens.