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PathopharmA 2
Chapter 104-106
Question | Answer |
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Glaucoma Of the 4 million Americans with glaucoma, only 50% are diagnosed •90% could have saved their sight with timely treatment •Forms | Visual field loss secondary to optic nerve damage •Leading cause of preventable blindness in the United States •Forms •Primary open-angle glaucoma (POAG) •Acute angle-closure glaucoma |
AQUEOUS HUMOR | •Produced in ciliary body •Secreted into posterior chamber of the eye •Circulates around the iris into the anterior chamber •Exits the anterior chamber via the trabecular meshwork and the canal of Schlemm |
PRIMARY OPEN-ANGLE GLAUCOMA | •Characteristics •Most common form of glaucoma in the United States •Progressive optic nerve damage, with eventual impairment of vision •Devoid of symptoms until significant and irreversible optic nerve injury has occurred |
•Risk factors | •Elevation of intraocular pressure (IOP) •Family history of POAG •Advancing age •African and South American ancestry |
Treatment | Directed at reducing elevated IOP (the only modifiable risk factor) •Principal method: Chronic therapy with drugs |
Treatment |