Eye and Ear

Question 1

Hyperopia

Answer 1

light that enters the eye is focused behind the retina rather than on the retina, near objects blurry, far objects clear

Question 2

Myopia

Answer 2

light that enters the eye is focused in front of the retina rather than on the retina, near objects clear, far objects blurry

Question 3

Astigmatism

Answer 3

irregular focusing of light, caused by non-spherical cornea, some objects clear, some blurry

Question 4

Presbyopia

Answer 4

inability of the internal lens to focus and refocus quickly, gradual loss of muscle elasticity, generally the result of aging

Question 5

Nystagmus

Answer 5

involuntary, repetitive, rhythmic movements of eye(s)

Question 6

Causes of Nystagmus

Answer 6

brain tumors, cerebrovascular lesions, alcohol use, drug abuse

Question 7

Strabismus

Answer 7

failure of the eyes to look in the same direction at the same time

Question 8

Causes of Strabismus

Answer 8

may be associated with amblyopia