What is short-sightedness ? State the two causes of short-sightedness (or myopia). With the help of ray diagrams, show: (i) the eye-defect short-sightedness. (ii) correction of short-sightedness by using a lens.

Question

Philoid · Accepted Answer

The defect of vision due to which a person can see nearby objects clearly but cannot see distant objects clearly is known as short-sightedness.

The two of its causes are :-

1) Excessive curvature of the eye lens

2) Elongation of the eyeball.

Its ray diagram can be shown as :-

(i)

(ii) The 3^rd diagram shows the correction of short-sightedness by using a lens.

What is short-sightedness ? State the two causes of short-sightedness (or myopia). With the help of ray diagrams, show:(i) the eye-defect short-sightedness.(ii) correction of short-sightedness by using a lens.

What is short-sightedness ? State the two causes of short-sightedness (or myopia). With the help of ray diagrams, show:
(i) the eye-defect short-sightedness.

(ii) correction of short-sightedness by using a lens.