Question

Define myopia & its causes​

Answer 1

Answer:

Explanation:

People who are nearsighted have what is called a refractive error. This means that the light rays bend incorrectly into the eye to transmit images to the brain. In people with myopia, the eyeball is too long or the cornea has too much curvature, so the light entering the eye is not focused correctly. Light rays of images focus in front of the retina, the light-sensitive part of the eye, rather than directly on the retina, causing blurred vision.  

Answer 2

Answer:

Myopia is the defect of the eye vision due to which a person can see the nearly objects clearly but can't see the for object so distinctly.

It's cases are:

• due to the elongation of the eyeball.
• due to decrease in the focal length of eye lense.