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10 Cards in this Set
- Front
- Back
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neovascularization |
response to ischemia and hemorrage, you get a proliferation of small vessels around the edge of the lesion |
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Macular Degeneration- progressive damage to macula, you lose central and detailed vision |
Dry(non-neovascular)--90% of cases Wet(neovascular)-- damage occurs when new blood vessels grow beneath the retina. these vessels are prone to leak and hemorrhage. give them VEGF inhibitor |
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chlamydia trachomitis A-C |
causes trachoma(common cause of blindeness) |
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Parasitic infections |
acanthamebiasis acanthamoeba- in water supplies toxoplasmosis congenital infection-- reintal involvement toxicara canis- contracted from contact with ova from infected dogs |
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autoimmune disorders |
sarcoidosis- mc is uveitis sympathetic opthalmitis- trauma to one eye with damage to iris or ciliary body might cause a delayed hypersensitivity reaction following sensitization to uveal and retinal antigens |
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cataracts |
formation of opaque proteins within the lens, you lose elasticity of the lens. can lead o severe visual loss but surgical replacement of lens can help correct it |
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glaucoma |
an increase in intraocular pressure. due to increased resistance to outflow and higher rate of aqueous fluid production. IOP impedes blood supply to retina and ultimatley leads to blindness |
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nevi and malignant melanoma |
melanocyte of uveal tract nevi= benign MM grow rapidly to form mass |
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malignant melanoma |
spindle cell melanoma- GOOD prognosis epithelial melanoma- VERY BAD prognosis commonly mets to LIVER |
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metastatic carcinoma |
breast carcinoma-females lung carcinoma-males |
