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Crystalline lens of people at old age becomes milky and cloudy. This condition is called

Crystalline lens of people at old age becomes milky and cloudy. This condition is called Correct Answer cataract

Concept:

  • Cataract: A cataract is a clouding and milkiness of the eye's natural lens, which lies behind the iris and the pupil.
    • This can be corrected only by the surgery.

Different types of eye defects and their corrections:

Defects of Vision

Details

Corrections

Myopia or Near-sightedness

The eye can see nearby objects clearly but the distant objects appear indistinct.

Concave Lens

Hypermetropia or Farsightedness

The human eye can see Distant objects clearly but cannot see nearby objects distinctly.

Convex Lens

Presbyopia

People suffer from near-sightedness as well as farsightedness.

bifocal lenses

Cataract

People suffer from the cloudiness of lens which causes a decrease in vision.

Surgery


Explanation:

  • From the above discussion, we can see that when the eye lens of people at old age becomes milky and cloudy. This condition is called the formation of Cataract. 

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