Question

What is myopia? How does it occur? How can it be corrected? Explain with figure.

Answer 1

Myopia is the term used to define short-sightedness. Light from a distant object forms an image before it reaches the retina. This defect may arise due to (i) excessive curvature of the eye lens, or (ii) elongation of the eyeball.

A myopic person has a clear vision when looking at objects close to them, but distant objects will appear blurred.

Myopia is easily corrected at your local optician using prescription glasses or contact lenses specifically designed to counteract the effect. A concave lens (minus powered) is placed in front of a myopic eye, moving the image back to the retina and clarifying the image.