What is shortening of eye ball?

Answer 1

The shorting of an eyeball, or pupil, is called a dialation. This happens when a pupil comes into contact with light. It becomes smaller to let less light in, make your vision clearer, and protect your eye. When a room gets darker, your pupils become larger. This is because there is less light, and to get a clearer picture your eyes need more light. This is a reason for UV protected sunglasses because if they arn't protected your pupils will get bigger and allow UV Rays to get in and harm your eyes.(Tid-bit Sorry) Anyway, the shortening of hrinking of an eyeball is a dialation.

Answer 2

Shortening of the eyeball is a condition known as axial myopia or nearsightedness. This happens when the eyeball is too long from front to back, causing light to focus in front of the retina rather than directly on it, leading to blurry vision when looking at distant objects. This is a common refractive error that can be corrected with eyeglasses, contact lenses, or refractive surgery.