Abstract
The following inborn errors of metabolism may show corneal changes: A. Inborn errors of metabolism affecting the corneal epithelium: (1) familial dysautonomia, (2) tyrosinaemia type II, (3) Fabry's glycolipidosis. B. Inborn errors of metabolism affecting the corneal stroma: I. Localized amyloidosis (lattice dystrophy of the cornea), II. Defects in carbohydrate metabolism: (1) localized mucopolysaccharidosis (macular dystrophy of the cornea), (2) systemic mucopolysaccharides, (3) glycogen storage disease. III. Defects in lipid metabolism: (1) localized from (Schnyder's crystalline dystrophy), (2) systemic forms (hyperlipoproteinaemia, hypolipoproteinaemia, Lecithin-cholesterol acyl transferase deficiency, Wolman's disease, Gaucher's disease). IV. Combined defects in lipid and carbohydrate metabolism (mucolipidoses). V. Other inherited metabolic disorders: (1) aminoacidopathies (cystinosis, Wilson's disease, ochronosis, Chediak-Higashi syndrome), (2) hemochromatosis.
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