Question

name the refractive defects of vision with diagram. Explain the reason and correction of these defects​

Answer 1

THE ANSWER IS:-

Instead of focusing light on retina, light is focused in front of the retina, resulting in blur image. It can becorrected with concave lens. Hypermetropia occurs when your "eyeball is shorter" than normal or cornea is 'curved' too little. ... Presbyopia occurs due to weakening of eyesmuscles and eye lens becomes rigid.

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Answer 2

Answer:

Instead of focusing light on retina, light is focused in front of the retina, resulting in blur image. It can be corrected with concave lens. Hypermetropia occurs when your "eyeball is shorter" than normal or cornea is 'curved' too little. ... Presbyopia occurs due to weakening of eyes muscles and eye lens becomes rigid.

Explanation:

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