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Am J Ophthalmol. 1987 Aug 15;104(2):157-63.

Unesterified cholesterol in Schnyder's corneal crystalline dystrophy.


We examined a 51-year-old woman who had bilateral corneal crystalline deposits unassociated with xanthelasma or systemic involvement. Her son had similar corneal lesions. Plasma cholesterol and apolipoprotein A-I and B levels were normal in both patients. Histopathologic examination of the corneal button in the mother obtained at the time of keratoplasty disclosed lipid deposits that stained with oil red O as well as with filipin, a fluorescent probe that specifically detects unesterified cholesterol. Electron microscopy showed abnormal accumulation of lipid and cholesterol in the central and paracentral basal epithelium, Bowman's layer, and superficial stroma.

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