Lim
Forum Elite
Topics: 62
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1. what mechanism does alpha agonists(Epinephrine) increase the outflow of aqueous humor from the eye?
i think clonidine does that cause it acts on presynaptic alpha-2 of ciliary epithelium.(decrease of NE)
(which originally postsynaptic-beta does production of aquesous humor,so beta blocker also can be used)
2. why specifically can't epinephrine be used in closed-angle glaucoma?
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*acetazolamide can't be used with somebody who has sulfur allergy.
*in Open angle glucoma,osmotic agents and cholinomimetics only can be used.(others are slow onset of actions)
are there more to know? let's add together..about Glucoma drugs..anythings are welcomed.
thanks in advance.
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| drfax
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Hi.
I'm answering just the acetazolamide coz I dont understand the others clearly
acetazolamide is an sulfa drug
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| Nan
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http://www.prep4usmle.com/forum/thread/29742
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| Lim
Forum Elite
Topics: 62
Posts: 210
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thanks,drfax,Nan
better to memorize...Epinephrine...increase outflow..and only for open-angle..(not close-angle)
more to know? please.
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