Question

write any three defects of vision and explain how can we correct them

3marks answer please ​

Answer 1

Answer Hope it helps you mate.If any further doubt do comment and ask.

Answer 2

Defects of vision and their correction methods,are as follows -

• Hyperopia : In this defect,the nearby objects appear as blurry and unclear,as compared to the far situated objects.

Correction : Usage of convex lens will help in this case.

• Myopia : In this defect,the far situated objects appear as blurry and unclear,as compared to the nearby objects.

Correction : Usage of concave lens will help in this case.

• Cataract : In this defect,a clouding happens in the eye which blocks a significant amount of light from entering into the eye which causes blurry vision.

Correction : Only surgery removal can help in this situation.