Vision (Week 9)

Question 1

3 foundations for higher levels of visual function?

Answer 1

VA, VF, oculomotor control

Question 2

Myopia

Answer 2

nearsightedness

Question 3

Hyperopia

Answer 3

farsightedness

Question 4

3 stages of visual function (Colendbrander model)

Answer 4

optic
retinal
neural

Question 5

loss of accommodation of lens?

Answer 5

Presbyopia

Question 6

People w/Diabetic retinopathy may have good VA but reduced?

Answer 6

contrast sensitivity

Question 7

2nd leading cause of blindness in US

Answer 7

glaucoma

Question 8

1st leading cause of blindness in US

Answer 8

macular degeneration

Question 9

Damage to visual pthwys beyond the organ of eye?

Answer 9

Hemianopic visual field

Question 10

Test of gross VF deficit?

Answer 10

confrontation testing (“Watch my finger”)

Question 11

2 gaze shifting mvmts

Answer 11

saccades

pursuits

Question 12

Quick scanning eye mvmts?

Answer 12

saccades (ex. eye mvmt on subway)

Question 13

smooth pursuits?

Answer 13

Track and follow moving target

Question 14

Binocular vision depends on 2 things?

Answer 14

eye alignment

accomnodation

Question 15

Ability of lens to strengthen its optical power so that close objects are seen clearly?

Answer 15

accommodation (declines after 40 yo)

Question 16

Typically w/right parietal lobe damage and believed to be attention-based processing impairment and not an eye or visual system impairment?

Answer 16

UN

Question 17

Representational neglect?

Answer 17

Disregard of the CON side of mental visualizations of a task, action, or environment

Question 18

Can not make connection that CON side of their body is actually theirs?

Answer 18

Personal neglect

Question 19

3 main features of hemi-inattention?

Answer 19

o Generalized difficulty with alertness and attention
o Spatial bias to IPS side
o Difficulty forming a mental representation of space that includes the involved side

Question 20

Most frequent complaint in clients w/vision impairment

Answer 20

reading difficulty

Question 21

What is Peripersonal space visual search and how is it assessed?

Answer 21

• Search of area immediately surrounding the body

- assessments are paper/pencil (draw clock)

Question 22

What is Extrapersonal space visual search and how is it assessed?

Answer 22

• The area that extends beyond arm’s reach and represents the larger environment through which an individual moves
• can assess by going to a quiet hallway in clinic and ask then to find scattered items

Question 23

What is eccentric viewing?

Answer 23

Low Vision Intervention for people w/ central vision impairment learn to use their peripheral vision as an alternate viewing area

Question 24

What is COPE and what does it stand for?

Answer 24

• organizational strategy

o Consistency:
o Order items:
o Pair like items:
o Establish routines:

Question 25

most common technique for VF deficit

Answer 25

scanning

Question 26

3 interventions for VF deficit

Answer 26

scanning compensatory strategies prisms

Question 27

how does a prism work?

Answer 27

o Bends light coming in the eye, moving image onto fovea

Question 28

4 interventions for oculomotor dysfunction

Answer 28

lenses prisms occulsion vision therapy