GENERAL KNOWLEDGE

GK

BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which among the following lens is used to treat Presbyopia?
A
Concave Lens
B
Convex Lens
C
Bifocal Lens
D
Cylindrical
Explanation: 

Detailed explanation-1: -Convex lens are used to correct presbyopia as the object you see is out of focus convex lens converges the light rays and brings in focus to your reach your retina.

Detailed explanation-2: -This is called an intraocular lens. Several types of lens implants are available for correcting presbyopia. Some allow your eye to see things both near and at a distance.

Detailed explanation-3: -REFRACTION IN CONVEX AND CONCAVE SPHERES Convex lenses are used to treat presbyopia, hypermetropia and aphakia.

Detailed explanation-4: -A bifocal lens consists of both convex lens as well as concave lens . It is used by the person suffering from myopia, hypermetropia, and presbyopia (not able to see vey distant objects).

There is 1 question to complete.