Q. 154.7( 3 Votes )
A person got his
Optician prescription for the spectacle reading
Left eye = -3 D are right eye = -3.5 D
Powers of the spectacles required to correct both the eyes are negative. This means that the person requires a concave lens for the correction.
Myopia (short-sightedness or near sightedness) is corrected using spectacles containing concave lenses. Hence the person suffers from myopia.
Myopia is the defect of vision due to which a person cannot see the distant objects clearly (although he can see the nearby objects clearly.
The far point of an eye suffering from myopia is less than infinity. It is caused:
(i) Due to the high converging power of the eye lens(because of its short focal length) or
(ii) Due to ye ball being too long.
Rate this question :