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20 Cards in this Set
- Front
- Back
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NS
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myopic shift, "second sight"
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Cortical
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Hyperopic shift
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PSC
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Affect near vision more than distance
-systemic steroids -X-rays |
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Presenile Cataracts
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DM, myotonic dystrophy (PSC christmas tree), wilson's, hypocalcemia, *atopic dermatitis*
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Tramatic cataracts
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Vossius ring
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Toxic cataracts: Chlorpromazine
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Stellate cataracts
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Toxic cataracts: Amiodarone
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Deposits
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Toxic cataracts: Miotics
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vacules
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Toxic cataracts:Gold salts
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gold deposits
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Disease that can cause lens subluxation
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Marfan's, Ehlers-danlos, Marchesani, homocystinuria
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most serious complication of Marfan's
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RD
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When calculating IOL power, axial length is critical. If the measurment is off by 1mm how many diopters is that?
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3D
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Drug C/I before sx
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Anticoagulents, Tamsulin (flowmax), prostaglandins
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Acute postoperative bacterial endophalmitis
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1/1000, 50% go blind in that eye
-Staph epidermis -hypopyon -occors within days |
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PCO(after-cataract)
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20-50%
-2-6 months after sx -Elschnig pearls(type oc PCO in children) |
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Post sx Cystoid Macular Edema
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-Called Irvine-Gass syndrome
-6-10weeks |
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Asteroid hyalosis
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-Usually asymtomatic
-Calcium-phosphate soaps |
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Sychysis Scintillans
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Golden brown cholesterol crystals that often settle in inferior vitreous
-occors after chronic uveitis, vitreous heme, trauma |
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PVD
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-Prevalence approximates age (50yo=50%, 75yo=75%)
-Adute onset of floaters, flashes of light, decreased va -Weiss ring -Tobacco dust (Schaffer's sign) -10% have RD |
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Vitreous Heme
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-Diabetes**
-trauma, HTN, BRVO, PVD, ARMD, Sickle, -Pre-retinal is boatshaped |
