Vision Impairment

Front 1

the purpose of vision care

Back 1

-to assure that pts receive care designed to maximize ocular health and provide max vision correction

Front 2

the goal of vision rehabilitation

Back 2

-To maximize the use of residual vision, for patients whose vision cannot be corrected to normal and to help them with practical adaptations for activities of daily living.

Front 3

Low vision

Back 3

-an inability to see adequately with regular glasses
-sometimes defined as </= 20/70

Front 4

legal blindness

Back 4

-vision is reduced below a certain cut-off in the USA:
-acuity </= 20/200 (now < 20/100 for SSI purposes)
-visual field </= 20 degrees
....best-corrected, in better seeing eye

Front 5

Blindness (totally blind)

Back 5

- cannot see at all. NLP (no light perception)
-smal percentage of the legally blind pop

Front 6

a model for eye care and vision rehabilitation

Back 6

-primary vision care --> low vision care, low vision eye exam, low vision intervention --> rehabilitation services --> if you are still having problems, consider other causes

Front 7

Visual acuity

Back 7

-how sharp we see- distance
-20/20 = "normal" vision (5 mins of arc)
top number= test distance
bottom number = letter size = distance at which someone with normal vision can see it
-20/200 = legally blind

Front 8

visual fields

Back 8

-how well we see to the sides, or problem centrally

Front 9

contrast sensitivity

Back 9

-how hazy, or faded things look
-good assessment of function

Front 10

glare/ binocularity/ color vision

Back 10

-how bright the light it/ how well the eyes work together/ how well we see color

Front 11

Normal changes in the aging eye

Back 11

1. reduced focusing power, particularly affecting near vision
2. needs more light for some tasks, especially reading
3. increased sensitivity to sunlight
4. takes longer to adjust to changes in light levels
5.does better with increased contrast
6. poorer color discrimination

Front 12

vision changes in the eye with diseas

Back 12

1. overall blurred (hazy) vision: eg. cataracts
2. central vision loss/blur (scotoma); ex. macular degeneration
3. loss of overall peripheral vision: ex. glaucoma
4. loss of side vision: ex. stroke or head trauma

Front 13

The low vision exam

Back 13

-functional hx, including Cc
-visual acuity- distance and near- with special charts
-refractive testing
-functional testing- fileds, contrast and glare, and skills
-evaluate for low vision devices

Front 14

Rehab: vision enhancement

Back 14

-low vision devices
-lighting, filters and glar cntrol
visual skills trainin

Front 15

The impact of vision loss

Back 15

1. anger
2. helplessness,
3. bordom
4. frustration
5. anxiety or fear,
7 depression\
8. denial

Front 16

travel training

Back 16

-orientation and mobility training teaches a person how to travel either alone

Front 17

ADL

Back 17

-writing assitance
-medication mgmt
-contrast
-talking glucometers