Chapter 3 - Chronic visual loss

Question 1

Chronic VL in the geriatric population

Answer 1

by 2030, 70 million americans over 65, 33% will develop vision-altering disease.

Question 2

Normal range of IOP

Answer 2

10 to 21

Question 3

Glaucoma

Answer 3

group of conditions in which tissues of eye become damaged. Usually optic nerve resulting in optic neuropathy associated iwth visual field loss. Role of IOP variable

Question 4

Incidence of cataracts

Answer 4

50% of people between ages 65 and 74, and 70% of those over 75

Question 5

Risk factors glaucoma

Answer 5

Age, Race, FH, last eye exam.

Question 6

Cataract

Answer 6

Any opacity or discoloration of the lens

Question 7

Bruch’s membrane

Answer 7

separates retinal pigment epithelium (outermost retina) from inner layer of choroidal vessels.

Question 8

Metamorphopsia

Answer 8

Distrotion of visual images, measured by amsler grid testing

Question 9

What technique do ophthalmologists use to identify neovascularization in consideration of laser treatment?

Answer 9

Fluorescein angiography.

Question 10

What percentage of patients with ARMD develop subretinal neovasularization

Answer 10

20%

Question 11

Nuclear sclerotic cataract

Answer 11

describes the sclerosis or darkening that is seen in central portion of the lens nucleus, seen in older patients.

Question 12

Posterior subcapsular cataract

Answer 12

granular opacities seen in central posterior cortex just under posterior capsule. Hyaline appearance