QQuestion
Write two causes of short-sightedness or myopia. Which type of lens is used to correct it? [2+1]
✓Answer
Myopia may occur due to:
- Excessive curvature of the eye lens, which increases its converging power.
- Elongation of the eyeball, which causes the image of a distant object to form in front of the retina.
Correction- Myopia is corrected by using a concave lens of suitable focal length.
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