What is croup? Croup is a fairly common respiratory condition in children usually caused by a viral infection or allergic reaction. Croup affects the windpipe (trachea), the bronchi (airways to the lungs), and the larynx (voice box).
However, as the cataract continues to become denser, vision also becomes more cloudy, and stronger glasses or contact lenses will no longer improve sight. Cataracts typically develop gradually and are usually not painful or associated with any eye redness or other symptoms unless they become extremely advanced.
A cataract is a clouding of the lens in the eye that affects vision. Most cataracts are related to aging. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery.here are two types of cataract surgery. Your doctor can explain the differences and help determine which is better for you: 1  Phacoemulsification, or phaco. 2  A small incision is made on the side of the cornea, the clear, dome-shaped surface that covers the front of the eye. 3  Your doctor inserts a tiny probe into the eye.