An old person is unable to see clearly nearby objects as well as distant objects.
a) What defect of vision is he suffering from?
b) What kind of lens will be required to see clearly the nearby as well as distant objects? Give reasons.
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a) Presbyopia
b) bifocal lenses
HARRY POTTER FOREVER! XD
b) bifocal lenses
HARRY POTTER FOREVER! XD
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a) Presbyopia
b) This defect arises due to gradual weakening of ciliary muscles and diminishing flexibility of the crystalline lens. So when the person suffers from both myopia and hypermetropia then bi focal lens are required
b) This defect arises due to gradual weakening of ciliary muscles and diminishing flexibility of the crystalline lens. So when the person suffers from both myopia and hypermetropia then bi focal lens are required
prakhargupta3301:
*sticks out tongue*
excused : P
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