Defects of Vision Ray Diagrams

The normal near point of a human eye is:

• 5 cm

• 10 cm

• 25 cm

• 30 cm

Eye lens is a:

• converging lens

• diverging lens

• plane lens

The defect of eye for which the far point of an eye is not infinity is

• myopia

• hypermetropia

• presbyopia

• cataract

Distant objects to a myopic eye appear

• clear

• blur

• lucid

• cannot see distant objects at all

Hypermetropia is

• short sightedness

• long sightedness

• presbyopia

• loss of vision

If a person has hypermetropia then the image formed in their eyes is

• in front of retina

• before eye lens

• behind retina

• anywhere but retina

Myopia can be corrected with a

• concave lens

• convex lens

• bifocal lens

Convex lens is used to correct (one or more options possible):

• myopia

• hypermetropia

• presbyopia

• cataract