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5 Cards in this Set
- Front
- Back
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What is a cataract?
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Opacity on or within the optic lens
Incidence increases with age Major cause of blindness in the world |
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Aetiology of cataracts
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Age related
Traumatic Metabolic Toxic Maternal infection Maternal drug ingestion Hereditary |
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Symptoms of posterior sub capsular cataract
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Trouble with bright sunlight/oncoming headlights
Reading vision affected more than distance vision |
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Main symptom of nuclear sclerotic cataract
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Myopic shift (e.g. From -2 to -5)
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Characteristics of diabetic cataract
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Osmotic over hydration of lens, epithelium becomes leaky so allows fluid to floe from anterior chamber into lens matter itself
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