Case study 3

Question 1

hyperopia

Answer 1

farsightedness
eyeball is shorter in length than usual
light rays converge behind retina

Question 2

myopia

Answer 2

nearsightedness
eyeball us longer in length than usual
light rays converge in front of retina

Question 3

astigmatism

Answer 3

cornea is misshapen

Question 4

other causes of hyperopia and myopia

Answer 4

due to problems w the lens or cornea

Question 5

amblyopia

Answer 5

lazy eye

• if an eye is not functioning properly, brains stops receiving info from bad eye
• binocular vision allows us to have depth perception, but with only one good eye this is lacking

-sometimes caused by imbalances of eye muscles, & we get wandering eye

Question 6

treatment for amblyopia

Answer 6

if untreated results in blindness

• if problem is muscular, can do training exercises
• if problem is w the eye, eye patch over good eye to make bad eye work and brain starts receiving info from it again