Disorders of the Eye

Question 1

Which cranial nerve transport visual images taken by the inner layer to the brain?

Answer 1

Cranial Nerve II

Question 2

The _____ in the retina, perceive vision in dim light and allow for peripheral vision.

Answer 2

Rods

Question 3

The _____ perceive vision in bright light and are responsible for color discernment.

Answer 3

Cones

Question 4

What 3 cranial nerves allow for movement of the eye to all planes and maintain the shape of the eyeball?

Answer 4

oculomotor (cranial nerve III)
trochlear (cranial nerve IV)
abducens (cranial nerve V)

Question 5

At what age does the eye reach normal adult size?

Answer 5

By age 14 years

Question 6

What is binocularity?

Answer 6

When both eyes function together for clear single vision to occur.

Question 7

What is hyperopia?

Answer 7

Inability to focus on nearby objects; farsightedness

Question 8

What is Amblyopia?

Answer 8

weakening of the poorer eye; lack of treatment can lead to blindness.

Question 9

What is Myopia?

Answer 9

An inability to see far-off objects; nearsightedness

Question 10

When does Myopia develop?

Answer 10

Myopia most commonly develops around 8 years of age

Question 11

What are some symptoms of Myopia in a child?

Answer 11

A child may complain of:
headaches
squints to improve distance vision. 
eye rubbing 
difficulty reading 
poor school performance
clumsiness

Question 12

What is Astigmatism?

Answer 12

Astigmatism is caused when the curvature of the cornea or lens is not uniformly spherical, causing blurred images