Impaired vision Flashcards
How does impaired vision affect a person?
Decreased independence in Self Care/ ADLs
Work/ Lifestyle Choices
Self Esteem and Safety
Interactions w/ society/ environment
a progressive loss of central and near vision due to damage of the central portion of the retina).
Macular degeneration
a clouding of the lens resulting in blurred vision)
cataracts
vision loss caused by increased pressure in the eye that can lead to blindness; loss of peripheral vision
glaucoma
nearsightedness; light rays focus in front of the retina
myopia
farsightedness; light rays focus behind the retina
hyperopia
normal vision resulting in clear focus on retina; no optical defects
emmetropia
inability to see, defined as corrected visual acuity of 20/400 or less, to no no light reception
blindness
Legal blindness in NY is
20/200
Most common causes of visual impairment and blindness
Diabetic retinopathy
MAC degeneration
Glaucoma/ Cataracts
Conditions in which damage to the otpic nerve is related to increased IOP caused by congestion in aeqeous humor; inci
Glaucoma
Normal IOP
10-21
50 % of ppl go undiagnosed w/ Glucoma. T or G
True
Risk Factors for Glaucoma
Age
High IOP
Black or Hispanic Descent
Hypertensive Retinopathy
Myopia
Family Hx
Treatment for Glaucoma
No cure, treatment that reduces IOP
S&S of glaucoma
Blurred Vision
Rainbow colored halo around eye
Difficult adjusting eyes in low light
Loss of peripheral vision
eye pain pressure
Headache
instrument that mentions pressure in eye
tonometer
drooping of the eyelid)
ptosis
involuntary oscillating movement of the eyeball)
nystagmus
Cataract treament
Needs surgery to be corrected
Cataracts S&S
Blurry Vision
Sensitivity to light
Trouble seeing in dim light/night
Diplopia (double vision)
Cataract surgery increases risk for …
Retinal detachment
leading cause of irreversible blindness and visual impairment in the world that causes central vision loss
Macular Degeneration
small, hyaline, globular deposits that appear like yellow areas with distinct edges in retina
Drusen
Dry Macular Degen (AMD) vs Wet Macular Degen (AMD)
Dry- slow breakdown of retinal outer layer
Wet- abrupt on set & causes more damage as vessels can leak fluid/blood and elevate retina
