Metabolic disorders causing cataract

1. Diabetic cataract (snow flake or snowstorm cataract)

2. Galactosaemic cataract
Deficiency of Galactokinase
Deficiency of galactose 1 phosphate uridyl transferase
Characteristic feature : oil droplet central lens opacities

3. Hypocalcaemic cataract

4. Wilson's disease (hepatolenticular degeneration) : inborn error in copper metabolism
Characteristic feature : Kayser-Fleischer ring sunflower cataract

5. Lowe's syndrome (oculo-cerebro-renal syndrome)

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