32 Glaucoma
- aqueous humor in anterior chamber of eye before iris
- posterior chamber behind iris, in front of lens
- gives eye shape and nourishes the eye
- ciliary secrete into posterior chamber, migrate to anterior, then to canal of schlemm
Intraocular Pressure
- creates pressure in anterior chamber of eye
Glaucoma
- angle formed by iris, ciliary muscle
- left: open angle glaucoma
- right: closed angle glaucoma
Closed Angle
- muscle dilating causes iris muscle to contract, can close the angle more, cause more pain
- eye surgery definitive
- multiple drugs used while waiting surgery
Open Angle
- elderly
- steroid usage: remodel of trabecular meshwork, less drainage
- most patients primary
- uveitis: impaired drainage
- disc cup: bright area 1/3 size of optic disc
- glaucoma: optic cup very big
Glaucoma Drugs
Parasympathetics
- closes iris, improves angle
- contracts ciliary muscle
Alpha
B blockers
PGE
- "F": PGF2a
- LA tan sandals: latanoprost (PGF2a)
- World traveler boots: travoprost (PGF2a)
- Leaking eyeballs: latanoprost and travoprost treat glaucoma by increasing aqueous humor outflow (not production)
- Brown sunglasses: latanoprost and travoprost can produce brown pigmentation in iris
Diuretics
Sympathetic
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