. Lauren wears glasses with a (spherical) lens prescription of +2.0. What can we

Question

. Lauren wears glasses with a (spherical) lens prescription of +2.0. What can we say about hereyesight:

A. Her near point is approximately 25 cm.

B. Without her glasses, she is farsighted. With her glasses, objects more than 0.5 meters awayare not in sharp focus.

C. Without her glasses, she is nearsighted and objects more than 2 meters away are not insharp focus.

D. Without her glasses, she is nearsighted and objects more than 0.5 meters away are not insharp focus.

E. Without her glasses, she is farsighted. With her glasses, objects more than 2 meters awayare not in sharp focus.

Explanation / Answer

Positive sign in the spherical prescriptions means lauren is farsighted means she is having problem in focusing on nearby object. With +2 prescription, the focal length of lens will be 1/2 = 0.5 m. It means lauren uses lens to see objects within 0.5 meters from eye. Further away from 0.5 m , objects may not seem clear with eyeglasses on.

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