Glaucoma Flashcards
eye disease which might pre-dispose to glaucoma
thickened cataracts lens, ectopic lens (potentially from trauma), diabetic retinopathy, tumours
where does aqueous humour exit the anterior chamber of the eye?
through the trabecular meshwork
the trabecular meshwork allows the aqueous humour to travel through to the ____ __ _____ into the episcleral venous system
canal of schlemm
prolonged elevation of IOP can cause… (3)
changes in the optic nerve, peripheral visual loss, blindness
acute closed angle glaucoma can be described as…
abrupt total closure of the angle causing a rise in IOP that is not self-limiting
chronic open angle glaucoma can be described as…
elevated IOP from an incomplete angle closure that is often asymptomatic
risk factors for open angle glaucoma are…
raised IOP, black race, FHx, age, hypertension, diabetes
How is open angle glaucoma diagnosed?
fundoscopy with slit lamp, IOP measurement, visual field assessment
Treatment options for open angle glaucoma (8)
prostaglandin analogues, b-blockers, a-agonists, carbonic anhydrase inhibitors, miotics, combination drops, surgery, laser surgery
Prostaglandin analogues example…
lantoprost
Prostaglandin analogues such as lantoprost, decrease IOP by…
increasing uveoscleral outflow
b-blockers used to decrease IOP include
timolol
b-blockers such as timolol decrease IOP by…
decreasing aqueous production
a-agonists used to decrease IOP include…
brimonidine
a-agonists such as brimonidine decrease IOP by…
increasing uveoscleral outflow and decreasing aqueous production
