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 person who has developed cataracts in one or both eyes may experience some or all of the following visual symptoms: Difficulty with night vision, especially while driving. Blurry or cloudy images. Seeing colors in muted shades, or with a yellowish or brown cast.