Diabetic retinopathy, macular degeneration, retinal detachment, vascular occlusions, optic neuritis, papilledema, visual field defects and pupil abnormalities.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the hallmark feature distinguishing proliferative diabetic retinopathy (PDR) from nonproliferative (NPDR)?
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Retinal neovascularization (new blood vessel growth).
- What is typically the earliest clinically visible sign of diabetic retinopathy?
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Microaneurysms.
- What do cotton wool spots in diabetic retinopathy represent?
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Areas of retinal nerve fiber layer infarction (microinfarcts).
- What is the standard treatment for proliferative diabetic retinopathy to reduce neovascularization?
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Panretinal (scatter) laser photocoagulation.
- What is the first-line treatment for clinically significant diabetic macular edema?
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Intravitreal anti-VEGF injections.
- Venous beading in diabetic retinopathy is a sign of what underlying process?
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Retinal ischemia and hypoxia (marker of disease severity).
- What are the two main forms of age-related macular degeneration?
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Dry (atrophic) and wet (neovascular/exudative).
- What are drusen?
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Yellow deposits of extracellular material beneath the retinal pigment epithelium.
- What causes vision loss in wet AMD?
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Choroidal neovascularization leaking fluid or blood under the retina.
- What home test can patients use to monitor for AMD progression or metamorphopsia?
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Amsler grid.
- What is the end-stage dry AMD finding characterized by well-demarcated areas of RPE and photoreceptor loss?
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Geographic atrophy.
- What is the most common type of retinal detachment?
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Rhegmatogenous retinal detachment, caused by a retinal break or tear.
- What classic symptom triad suggests retinal detachment?
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Sudden flashes of light, floaters, and a curtain-like shadow over vision.
- What is Shafer's sign (tobacco dust) on eye exam, and what does it indicate?
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Pigment cells in the anterior vitreous, indicating a retinal tear or detachment.
- Name two major risk factors for rhegmatogenous retinal detachment.
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High myopia and prior cataract surgery (trauma is another).