Advertisement Remove all ads

Explain Two Possible Reasons of Myopia. How Can It Be Corrected? Explain with a Suitable Diagram. - Science and Technology 1

Explain two possible reasons of myopia. How can it be corrected? Explain with a suitable diagram.

Advertisement Remove all ads

Solution

Possible reasons of myopia:-

(i) Ciliary muscles do not relax sufficiently. Therefore, the converging power of the eye lens becomes high.

(ii) The distance between the eye lens and the retina increases (relative to the normal eye) as the eyeball is lengthened (elongated) or the eye lens is curved.

Correcting myopia:-

(i) Myopia is corrected using a suitable concave lens. Light rays are diverged by the concave lens before they strike the eye lens.

(ii) A concave lens of appropriate power is chosen to produce the required divergence. Hence, after the converging action of the eye lens, the image is formed on the retina.

Concept: Eye Defect and Its Correction: Myopia Or Near-sightedness
  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

Advertisement Remove all ads
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×