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 Natural Process. Again, cataracts are a natural process and, thus far, an unavoidable part of aging. As we age the chances of having a cataract increases. For example, it is estimated that in the U.S. less than 4% of men and 10% of women between the ages of 55 and 64 years have visually significant cataracts. Between the ages of 65 and 74 years, 14% of men and 24% of women experience cataracts.