Low Vision Flashcards

1
Q

what qualifies an individual as having low vision

A

visual acuity <20/40 in the better seeing eye

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2
Q

what qualifies an individual as being bling

A

visual acuity =20/200 in the better seeing eye

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3
Q

presbyopia

A

difficulty focusing on near objects

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4
Q

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

A

central or focal vision system

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5
Q

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

A

peripheral or ambient visual system

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6
Q

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

A

cataracts

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7
Q

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

A

dry age related macular degeneration

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8
Q

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

A

wet age related macular degeneration

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9
Q

disease causing intraoccular pressure related to peripheral vision loss

A

glaucoma

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10
Q

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

A

Melbourne low vision ADL index

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11
Q

used to assess central vision

A

Amsler grid

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12
Q

method of rotating the head or trunk to use peripheral vision

A

eccentric viewing

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13
Q

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

A

flower design card

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14
Q

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

A

Clock/sentence assessment

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15
Q

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

A

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

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16
Q

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

A

visual field testing

17
Q

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

A

near visual acuity

18
Q

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

A

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

19
Q

convex lenses make objects _______

A

larger

20
Q

concave lenses make objects _______

A

smaller

21
Q

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

A

prisms

22
Q

method of counting steps and turning 90 degrees around corners

A

squaring off

23
Q

what qualifies an individual for low vision services

A

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

24
Q

vision loss marked by fluctuating vision loss,

A

diabetic neuropathy