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.
There are various types of cataracts. The most common type is a nuclear sclerotic cataract which is when the central part of the human lens gets denser and becomes cloudy or opaque. A snowflake type cataract is not very common and is associated with diabetes. It is derived from the fact that the lens looks like white opacities reminiscent of snowflakes. Snowflake cataracts can also occur in non-diabetics too, although very uncommonly. There is no known cause of these types of cataracts.