Cataract is characterized by a painless, progressive decline in vision. Apart from decreasing vision patients with cataracts even in the early stages may experience increased glare while driving at night or reading in dim illumination, difficulty in differentiating objects at a distance and the need for frequent change of glasses.
A Cataract is a clouding of an eye lens that can cause blurred vision, dimmed or yellow vision, making it hard to see. A healthy lens will refract light coming into the eyes to make seeing possible, but in the case of a cataract, this lens gets cloudy/foggy. During a cataract surgery, the natural cloudy lens is removed and an Artificial lens, called an intraocular lens (IOL) is put in its place.