Cataract surgery is a type of eye surgery performed by an ophthalmologist in which the surgeon removes the lens of your eye and replaces it with an artificial lens. A cataract happens when the lens of the eye has developed an opacification which causes the lens to become cloudy, eventually affecting your vision. The surgery is done by making a tiny cut in the front of your eye, sometimes with the help of a laser. The procedure is highly effective and has been proven to have a high success rate in improving your eyesight.