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13 Cards in this Set
- Front
- Back
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ARMD
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-Cheif cause of vision loss in 50+
-Dry:asymptomatic, gradual, *drusen, mottling, geographic -Wet:Sudden, distortion (amsler) |
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Worst form of dry AMD
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Geographic
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Pathophysiology of Dry and Wet AMD
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Dry: disease of RPE, Bruch's, and choriocapilaris
Wet:Abnormal RPE and choriodial neovascualt membrane |
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4 types of leakage associated with wet ARMD
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1)Sub-RPE heme:grey-green
2)Sub-RPE detachment: plasma under RPE (also called PED) 3)Sub retinal heme 4)Sub retinal detachment (plasma-serous retinal detatchemt) |
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2 big riskfactors for dry going wet?
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multiple soft drusen
focal hyperpigmentation |
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Central Serous Choroidopathy
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-type A middle aged men
Sudden unilater vision loss/metamorphopsia -Bruch's breakdown -40% recurrence -Macular serous detatchemtn -Fluorescein angiography: gradual pooling or smokestack |
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Histoplasmosis
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-Whites, Ohio/MS valley
*Triad: multiple punched out lesions, PPatrophy, macular involvment -Fungus -30%recurrence |
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high myopia
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>6D
axial length> 26mm -Staphyloma, oblique insertion of disc, Fuchs' spots (hyper pigmentation) *Lacquer cracks(yellow streaks) *Macular holes |
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Lacquer cracks
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fine yellow lines that represent large breaks in bruch's
-neo can occur |
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Epiretinal membrane
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-Glial cells from retina grow out a hole in ILM
-Contraction of membrane can wrinkle retina -Mild=cellophane -Sever=pucker |
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Macular Hole
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Round red spot, vision 20/200
-stages:1yellow, 2hole/pseud operculum, 3hole with operculum, 4hole+detatchment -PVD, if other eye already has PVD no risk |
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Cystoid macular edema
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Post cataract sx
-Prosaglandin induced |
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Macular Photostress Test
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Look at light for 10 sec
Time to read 1 line less than BVA -should be <1min |
