CHANGES IN ULTRASTRUCTURE AND FUNCTION OF THE SHEEP PIGMENT EPITHELIUM AND RETINA INDUCED BY SODIUM IODATE1

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Abstract
The normal ultrastructure [as seen by EM] of the sheep pigment epithelial cells was described as a basis for the interpretation of toxic (sodium iodate) effects on these cells dealt within the 2 following papers. The morphological features of the different cell membranes and cell organelles, particularly the phagosomes and the lipid droplets, were discussed in relation to renewal of the photoreceptor outer segment, pigment epithelial and retinal metabolism, barrier mechanisms and electrical properties.