Shared Flashcard Set

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Glaucoma review
glaucoma review
9
Health Care
Graduate
10/11/2015

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Cards

Term
What glaucoma medication can prolong the effects of succinylcholine?
Definition
echothiophate, usually prolongs it 30 minutes
Term
What is normal intraocular pressure?
Definition
10-21 mmHg is normal, > 22 is hypertension
Term
What physiologic factors will increase intraocular pressure?
Definition
increased venous pressure, arterial pressure, CO2, and hypoxia
Term
What are the 2 types of glaucoma?
Definition
Open angle (chronic) and closed angle (acute)
Term
What are the symptoms of acute angle-closure glaucoma?
Definition
ocular pain, blurred vision, and fixed mid-dilated pupils
Term
How does mannitol affect intraocular pressure?
Definition
Mannitol, dextran, urea, and sorbital all decrease intraocular pressure by decreasing aqueous humor formation by the ciliary body.
Term
Is atropine contraindicated in patients with glaucoma?
Definition
The amount of atropine typically administered preoperatively (0.4 mg IV) results in approximately 0.0001 mg absorbed by the eye which many practitioners regard as having an insignificant effect on intraocular pressure.
Term
What specific actions should you incorporate into the anesthetic for patients with glaucoma?
Definition
Pre-op instill miotic drops to enhance aqueous humor drainage, avoid venous congestion and over hydration, avoid coughing and hypotension (thrombosis is retinal vessels
Term
What factors increase intraocular pressure and which decrease it?
Definition
Succs increases it, VA, nitrous, benzo, opioids, and barbs all decrease IOP
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