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.
Yes. Although most cataracts are related to aging, there are other types of cataract: 1  Secondary cataract. 2  Cataracts can form after surgery for other eye problems, such as glaucoma. 3  Cataracts also can develop in people who have other health problems, such as diabetes. 4  Cataracts are sometimes linked to steroid use.