SCANNING ELECTRON-MICROSCOPY OF NORMAL AND LASED RABBIT PIGMENT EPITHELIUM

  • 1 January 1977
    • journal article
    • research article
    • Vol. 16  (8) , 700-710
Abstract
Scanning electron microscopic (SEM) observations of the rabbit retinal pigment epithelium (RPE) were reported for normal tissue and tissue subjected to laser radiation. In normal RPE, cells apparently were closely packed and had the characteristic hexagonal shape. The microvilli were abundant and of 2 types. Suprathreshold lesions were produced with 0.4 .mu.s pulses of high-intensity yellow light (585 nm) from a dye laser. In the lased RPE, cells were denuded of their microvilli, and a number of cells with single discrete holes were observed. Hypertrophied cells were always present. Within 5 days of irradiation groups of small proliferating RPE cells were found in the lesion area.

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