The author studied on the changes of the lipid and mitochondria in experimental degeneration of the retina of the rabbit caused by intravenous injection of 5% solution of sodium iodate.Lipids in the pigment epithelinm slightly decrease with the exception of those in the lipochrin.No remakable change was observed in the lipids of the outer segments and ellipsoid of vesual cells.Most of the mitochondria in pigment epithelial cells disappeared as the cells degenerate, but some of them remained unchanged even in rather advanced stages of degeneration.
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