Intro to Low Vision Flashcards Preview

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Flashcards in Intro to Low Vision Deck (26):
1

what are the 3 most common causes of visual impairment

age related macular degeneration, glaucoma, and diabetic retinopathy

2

what is low vision

reduced visual acuity that is not correctable by specs, medicine or surgery

3

does low vision affect daily living

yes it impacts functions in daily living, occupational and academic demands

4

what are the clinical perimeters for low vision

best corrected VA of 20/70 to light perception and less than 20 degrees of peripheral field

5

what is legal blindness

best corrected VA of 20/200 or worse or peripheral vision less than 20 degrees in the better eye

6

what is blindness

no usable vision at all- no light perception

7

what is visual impairment

functional limitation of the eye(s) or visual system

8

what are some examples of visual impairments

reduced VA (20/70 or worse), peripheral vision loss, scotomas, diplopia, distortions, central vision loss, loss of contrast sensitivity, loss depth perception, or extreme photophobia

9

what is a visual disorder

anatomical changes caused by diseases of the eye- doesn't necessarily affect function

10

what is a visual disability

limitations in a person's skills and abilities (inability to read, write, drive, self-care, cooking)

11

what is a visual handicap

psychosocial and economic consequences of vision loss as well as environmental barriers (loss of independence, social isolation)

12

what are 3 categories of visual impairments

congenital, genetic, and acquired

13

what are some causes of congenital visual impairments

Children: prenatal, perinatal and postnatal injuries or infections, premature birth, optic nerve damage, etc.

14

what are some causes of genetic visual impairments

younger people: tumors, Stargardt disease, Retinitis pigmentosa, oculocutaneous albinism, aniridia

15

what are some causes of acquired visual impairments

adults: hemianopias, traumatic brain injuries, macular degeneration, cataracts, diabetic retinopathy

16

how is visual impairment different from legal blindness

visual impairment still has some usable vision- legal blindness does not

17

what are 2 reasons to perform vision rehab

teach patients to use their remaining vision and/or other senses effectively by modifying activities, restore vision to state of useful vision through optical devices, training, and guidence

18

what are some outcomes of vision rehab

maintain productive members of society, remain safe and active, increase personal independence, decrease government and family/caregiver support, and improves quality of life

19

list some common providers that participate in low vision care

low vision optometrist/ophthalmologist, occupational therapist, orientation/mobility instructor, vision rehabilitation therapist or low vision therapist, social worker, mental health provider, vocational rehabilitation counselor, and optometric technicians/support staff

20

Jeff has retinitis pigmentosa which resulted in constricted peripheral fields. He cannot travel alone & may not be able to maintain his job as a web designer
What visual impairment does he have?

constricted peripheral fields

21

Jeff has retinitis pigmentosa which resulted in constricted peripheral fields. He cannot travel alone & may not be able to maintain his job as a web designer
What visual disability has Jeff have?

cannot travel alone

22

Margaret has age-related macular degeneration. She has a blind spot in her central vision which affects her ability to read mail and bills in order to manage her finances. She is worried because she risks losing her apartment from unpaid rent.
What is the handicap associated with the vision loss?

losing her apartment (economic consequence)

23

Margaret has age-related macular degeneration. She has a blind spot in her central vision which affects her ability to read mail and bills in order to manage her finances. She is worried because she risks losing her apartment from unpaid rent.
What is the visual disorder?

age-related macular degeneration (eye disease)

24

Jerry has VA cc OD 20/150 OS LP- Peripheral field OD 150 degrees, OS 100 degrees; Is he visually impaired or legally blind

visually impaired not legally blind

25

John’s VA cc OD 20/20, OS 20/20
Peripheral field OD 17 degrees, OS 19 degrees; Is he visually impaired or legally blind

legal blindness based on visual field

26

Sherry’s VA cc OD 20/125, OS 20/80
Peripheral vision OD 150 degrees, OS 145 degrees; Is she visually impaired or legally blind

visually impaired but not legally blind