Low Vision

Question 1

what qualifies an individual as having low vision

Answer 1

visual acuity <20/40 in the better seeing eye

Question 2

what qualifies an individual as being bling

Answer 2

visual acuity =20/200 in the better seeing eye

Question 3

presbyopia

Answer 3

difficulty focusing on near objects

Question 4

analyzes a visual target in terms of its details, color, shape, texture

Answer 4

central or focal vision system

Question 5

provides background information about ones position in relation to the environment and is quick to detect motion

Answer 5

peripheral or ambient visual system

Question 6

central vision loss where the lens becomes more opaque and a reduction of light going to the retina

Answer 6

cataracts

Question 7

deposits of yellow material within the macula of the eye causing retinal atrophy and a gradual loss in central vision

Answer 7

dry age related macular degeneration

Question 8

proliferation of abnormal blood vessels that leak blood and fluid into the macula causing central vision loss; progresses quickly

Answer 8

wet age related macular degeneration

Question 9

disease causing intraoccular pressure related to peripheral vision loss

Answer 9

glaucoma

Question 10

assesses the impact of a persons visual impairment on ADLs and IADLs

Answer 10

Melbourne low vision ADL index

Question 11

used to assess central vision

Answer 11

Amsler grid

Question 12

method of rotating the head or trunk to use peripheral vision

Answer 12

eccentric viewing

Question 13

assessment for determining the dominant eye or the eye that processes vision

Answer 13

flower design card

Question 14

assesses presence and location of scotoma by assessing missing numbers on a clock or words in a sentence when looking centrally

Answer 14

Clock/sentence assessment

Question 15

clients rate their ability to perform 38 vision dependent BADLs, ADLs, and IADLs

Answer 15

Self-report assessment of functional visual field performance profile (SRAFVP)

Question 16

during which assessment of vision would you instruct the client to not wear glassess

Answer 16

visual field testing

Question 17

during which assessment of vision would you only test the eyes together

Answer 17

near visual acuity

Question 18

what is preferred retinal locus (PRL) training and what is the gradation of intervention

Answer 18

the use of intact vision; especially for scotomas as a result of macular degeneration; static fixation–> tracking –> consistent use with saccades

Question 19

convex lenses make objects _______

Answer 19

larger

Question 20

concave lenses make objects _______

Answer 20

smaller

Question 21

shift images by moving non-viewing areas to viewing areas; useful for visual field deficits

Answer 21

prisms

Question 22

method of counting steps and turning 90 degrees around corners

Answer 22

squaring off

Question 23

what qualifies an individual for low vision services

Answer 23

minimum best corrected vision (BCV) of 20/60 in better seeing eye

Question 24

vision loss marked by fluctuating vision loss,

Answer 24

diabetic neuropathy