Pang low vision 1 Flashcards
(visual impairments/low income) leading cuase of uncorrected refractive errors
visual impairments
(cataracts/glaucoma) is the leading cause of blindness in middle and low income countries
cataracts
Age related macular degeneration
Diabetic retinopathy
Glaucoma
–all cuases of (viual impairment/blindness)
visual impairment
low vision is ____ vision not correctable by lglasses, contacts, medicineor surery
reduced
Reduced visual acuity (~20/70 and worse) Peripheral vision loss (constricted, hemianopsias) Scotomas Double vision Distortions Central vision loss Loss in contrast sensitivity Problems with depth perception Problems with visual perception Extreme light sensitivity --all of these a pt. is considered to be visually \_\_\_(impaired/blind)_
impaired
Anatomical changes caused by diseases of the eye
Does not necessarily affect a person’s function
-describes visual (impairment/disorder)
disorder
Reduced visual acuity, constricted peripheral field, contrast sensitivity loss, photophobia, central vision loss
–describes a visual (disorder/impairment)
impairment
visual (disorder/impairment) is a functional loss that results form a visual (impairment/disorder(
impairment ,disorder
Limitations in a person’s skills & abilities
Inability to: read, write, drive, self-care, travel, managing finances, seeing people’s faces, preparing meals, etc.
- describes visual (impairment/disability/handicap)
disability
Psychosocial and economic consequences of vision loss; as well as environmental barriers
Loss of independence or inability to work or social isolation or no street crosswalk or no wheelchair accessible restrooms
- describes visual (impairment/disability/handicap)
handicap
Best corrected visual acuity 20/200 or worse in the better eye (using Snellen acuity charts) or Peripheral Vision less than 20 degrees in the better eye
- describes (low vision/disability/legal blindness)
legal blindness
Best corrected visual acuity of 20/70 to LP
Less than 20 degrees of peripheral field
Who uses, or is potentially able to use, vision for the planning and/or execution of a task
- describes (low vision/disability/legal blindness)
low vision
(Blindness/low vision) is having no usable vision at all, also known as No Light Perception
blindness
T/F Vision loss and visual impairment: any type or degree of change in vision
T
legal blindness is alwasy an impairment affecting (both/one) eye or eyes
both eyes!!!!
legal blindness is an impairment (with/without) best correction
with
which code is used for central scotoma A) 368.41 B)368.45 C)368.46 D)368.47
368.41
which code is used for Generalized constriction A) 368.41 B)368.45 C)368.46 D)368.47
B)368.45
which code is used for Homonymous bilateral field defect A) 368.41 B)368.45 C)368.46 D)368.47
C)368.46
which code is used for Heteronymous bilateral field defect A) 368.41 B)368.45 C)368.46 D)368.47
D)368.47
Generally develop in children: include Prenatal, perinatal, postnatal injuries or infections, premature birth, optic nerve damage, etc
–describes (congenital/genetic/acquired) conditions
congenital
Generally develop in younger people: Examples include tumors, Stargardt disease, Retinitis Pigmentosa, Oculocutaneous Albinism, Aniridia, etc.
–describes (congenital/genetic/acquired) conditions
genetic
Generally develop in older people: hemianopias, traumatic brain injuries, Age related macular degeneration, Cataracts, Diabetic retinopathy, etc.
–describes (congenital/genetic/acquired) conditions
acquired
T/F low vision rehab does restore impaired vision
F. does not restore it helps pt. optimize exisitnig vision through prescribed optical devices, adaptive technology, non-optical aids, absorptive filters, and rehabilitation techniques
Vision Rehabilitation Examination
(is/is not) a general eye exam to determine the general refractive adn health status of the eye
(is/is not) treating the disease
is not
is not
Vision Rehabilitation Examination (is/is not) an exam to determine how someone functions with their current vision level and provide strategies to improve their functioning for performing desired activities
is
General observations Ocular & medical history Visual acuity Gross visual field Ocular health assessment (same/different) in a visual rehabilitation exam vs general exam
same
(same/different) in a visual rehabilitation exam vs general exam Detailed functional history Obtain VA differently Trial frame refraction Central field test Contrast sensitivity Optical device testing
different
T/F vision rehabilitation not treating the eye disease but treating patient’s functional abilities
T
