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Glaucoma Tx
Pharm II
| Question | Answer |
|---|---|
| additional contributory factors to glaucoma | retinal ischemia, reduced/ dysregulated blood flow, extracellular matrix changes |
| does everyone lose their vision at the same IOP | no, diff. ppl are susceptable to losing their vision at different times |
| where is aqueous humor formed | ciliary body |
| how does AH travel theough the eye | made in ciliary body, secreated into post. chamber, pressure pushes it b/w iris and lens, through pupil into ant. chamber, leaves through trabecular meshwork |
| two ways AH leaves the ey | travecular meshwork 80-85% or iris blood vessels |
| what increase inflow of AH | B-receptor stimulation |
| what decrease AH inflow | a and a2 adrenergic stiumulation B-blocking, DA blocking, adenylate cyclase stimunation |
| what is optic n. degeneration characterized by | disk changes and visual field loss |
| drugs that potentiate glaucoma | corticosteroids, opthalmic anticholinergics, vasodilators, cimedtidine |