82) The delicate membrane having enormous number of light sensitive cells is:

A) optic nerve
B) retina
C) pupil
D) cornea

83) The amount of light entering the eye is regulated and controlled by the

A) pupil
B) optical nerve
C) retina
D) ciliary muscles

84) The minimum distance at which the objects can be seen most distinctly without strain is called

A) far point of the eye
B) near point of the eye
C) range of accommodation
D) power of accommodation

85) A person can see distant objects clearly but cannot see nearby objects distinctly. The person is suffering from:

A) hypermetropia
B) myopia
C) presbyopia
D) cataract

86) The defect myopia can be corrected by using a:

A) convex lens
B) concave lens
C) bifocal lens
D) plano convex lens