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Question
Presbyopia can be corrected with the help of _____ .
Presbyopia can be corrected with the help of _____ .
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Solution
The correct option is B Bifocal lens
Presbyopia occurs due to gradual decrease in the power of accommodation of the eye with ageing. It arises due to the gradual weakening of the ciliary muscles and diminishing flexibility of the eye lens. The person may suffer from both myopia and hypermetropia. Such people often require bifocal lenses which consist of both concave and convex lenses. The upper portion consists of a concave lens which facilitates distant vision. The lower part is a convex lens which facilitates near vision.
Presbyopia occurs due to gradual decrease in the power of accommodation of the eye with ageing. It arises due to the gradual weakening of the ciliary muscles and diminishing flexibility of the eye lens. The person may suffer from both myopia and hypermetropia. Such people often require bifocal lenses which consist of both concave and convex lenses. The upper portion consists of a concave lens which facilitates distant vision. The lower part is a convex lens which facilitates near vision.
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