Low Vision and OT

Question 1

Low Vision Definition

Answer 1

visual acuity is 20/70 or less in the better eye and cannot be improved by glasses

Question 2

Legal Blindness

Answer 2

20/200 or less in the better-seeing eye with glasses or contacts

Question 3

CVRT

Answer 3

complete daily activities and visual compensations
Alter environment, activity and person
Not medically trained or evaluate cognition

Question 4

Low vision eval

Answer 4

Intake with social worker
optometrist

Question 5

What is the difference between optometric and ophthalmologist

Answer 5

optometrist= Dr. of optometry
Ophthalmologist= went through med school

Question 6

Scotoma

Answer 6

Retinal area with deuced light sensitivity compared to normal

Question 7

Central scotoma

Answer 7

involves the macula
right in middle

Question 8

Dense scotoma

Answer 8

does not change what can be seen with bright light b/c no light is coming in

Question 9

Relative Scotoma

Answer 9

sensitive to bright light and light increases what is seen

Question 10

What does the client with a scotoma need to have in order for interventions to work

Answer 10

Awareness that the scotoma is present

Question 11

Preferred Retinal Locus

Answer 11

adjustment of the eyes to a preferred spot to see past scotoma

Question 12

What is one of the best ways to test for a scotoma

Answer 12

Unfamiliar environment
Wont know where things are so it will be hard to make compensations

Question 13

Normal Limits for visual Field

Answer 13

Superior= 60
Inferior= 75
Temporal=100
Nasal=60

Question 14

Gaze Preference

Answer 14

looks of visual field causes the person to adjust their gaze away from the loss

Question 15

Intervention for Visual Field Defecits

Answer 15

Increase awareness
Teach organized scanning into loss
Use occlusion to force client to attend to neglected side
Incorporate scanning

Question 16

Neglect

Answer 16

brain does not pay attention to one side/one side does not exist
lack insight into deficits
tend to have difficulties with attention
unorganized approach on cancellation test

Question 17

What has to come first for Low vision Interventions

Answer 17

Education

Question 18

Education for Low Vision

Answer 18

Medical- diagnosis, prognosis, outcomes
Safety
Programs available

Question 19

Eccentric Viewing

Answer 19

Using different area of the retina to view
This spot that is chose is the PRL
Has to know there is a blind spot and where it is

Question 20

EV Method

Answer 20

Focus on high contrast object 3-5 feet away
look at object
notice where things are blurry
identify clear areas of vision
move eyes toward the missing area and stop when object is clear or complete

Question 21

Reading Scanning Training

Answer 21

Look at speed
Large print may not work
start with 1 letter and move ip
jump from left column to far right
use anchors

Question 22

What are colors have the lowest and highest contrast

Answer 22

Lowest= black and navy blue
highest= white and black

Question 23

Cognition and Vision

Answer 23

Deficits are often interpreted as each other
Important to determine the difference
need strong cognitive skills for making maps of items

Question 24

Pre-planning cognition

Answer 24

plan out steps that may be difficult ahead of time
make a list and steps that you need to take to be successful
anticipate any other challenges that may arise