Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
|
k
|
k
|
|
|
Nuclear sclerotic cataracts affected _____ vision more than _____ vision
|
distance
near |
|
|
Nuclear sclerotic cataracts result in a "second sight phenomenon" in which the refractive power _____ leading to a myopic shift
|
increases
|
|
|
Posterior subcapsular cataracts affect _____ vision more than ____ vision
|
near
distance |
|
|
General sxs of cataract include
|
glare
halos starbursts monocular diplopia |
|
|
Do cataracts have RAPD?
|
no
|
|
|
Two indications for tx of cataracts
|
1. Reduced vision interferes with daily life
2. Cataract obscures the view in the retina or optic nerve cannot be examined properly |
|
|
Two surgical tx for cataract include
|
Phacoemulsifications with intraocular lens implant
Extracapsular cataract extraction with intraocular lens implant |
|
|
____ is a cause of irreversible blindness and the most common cause of blindness in what pt population?
|
glaucoma
AAmerican |
|
|
_____ is the most common form of glaucoma
|
chronic/primary open angle glaucoma (COAG)
|
|
|
Risk factors of COAG include
|
Age
AAmerican Elevated IOP Increased cup:disc Family Hx |
|
|
SXS of COAG include ...
|
None until advanced
|
|
|
What is the sequence of aqueous humor outflow?
|
Produced by Cilitary body -> through pupil into AC -> drains through trabecular meshwork into the Schlemm canal -> venous system
|
|
|
Main patho basis of glaucoma
|
Increased aqueous outflow resistance => increased IOP
|
|
|
A pts should be referred to optho in an glaucoma eval if the exam shows ...
|
Cup:disc > 0.5
Cup:disc asymmetry of more than 0.1 |
|
|
Most common cause of irreversible central vision loss in people 50+
|
macular degeneration
|
|
|
Pts with macular degeneration should be referred if ...
|
Recent onset decreased vision
Recent onset metamorphopsia Recent onset scotoma |
|
|
Tx of "Dry" AMD includes ..
|
Stop smoking!
Green and yellow veggies in diet; lutein AREDS' formulation: vitamin C, vitamine E, beta carotene, zinc, cupric oxide |
|
|
Tx of "wet" AMD includes...
|
Laser photocoagulation
Intravitreal injections of macugen or lucentis |
