Chapter 15

Question 1

Accommodation

Answer 1

Adaptation of the eye for near vision. Observable part is convergence (motion toward) the axes of the eyeball and pupillary constriction.

Question 2

Age related macular degeneration AMD

Answer 2

Loss of central vision of unknown cause, possibly oxidative stress and inflammation. Yellow deposits/neovascularity in the macula. 1 in 10 Americans suffer from it.

Question 3

Cataract

Answer 3

Age-related change, normally transparent fibers of the lens begin to thicken and yellow.

Question 4

Conjunctivitis

Answer 4

Redness of the eye.

Question 5

Diplopia

Answer 5

Perception of two images of a single object. Diplopia in one eye is caused by dry eyes, uncorrected refractive error or cataracts.

Question 6

Exopthalmos

Answer 6

Protruding eyes

Question 7

Glaucoma

Answer 7

Optic nerve compression caused by intraocular pressure

Question 8

Mydriasis

Answer 8

Dilated and fixed pupils

Question 9

Nystagmus

Answer 9

Uncontrollable movement of the eye

Question 10

Palpebral Fissure

Answer 10

Elliptical open space between the eyelids

Question 11

Papilledema

Answer 11

Swelling of the optic disc caused by intracranial pressure