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June 1955

The Cells of Remak and the Astroglia of the Normal Human Retina

Author Affiliations

Ann Arbor, Mich.
From the Laboratory of Neuropathology and Neuro-Ophthalmology, Neuropsychiatric Institute, University of Michigan.

AMA Arch Ophthalmol. 1955;53(6):832-838. doi:10.1001/archopht.1955.00930010840008

The retina is a part of the central nervous system, and its neurons are supported by an elaborate system of glia, as are neurons in general. The supporting system of the brain contains three types of elements: the astroglia, the oligodendroglia, and the microglia; in the brain we possess a solid knowledge of all three types of cells. In the human retina, on the contrary, with the exception of the cells of Müller (radial fibers), not much is known of the glia. Friedenwald1 stated that "unfortunately, few extensive studies have been made on the retina with special stains developed in the past 20 or 30 years to demonstrate neuroglia and microglia." This gap in our knowledge is due to technical difficulties, since with the conventional histologic procedures or the older metallic impregnations it is not possible to visualize the glia. However, some of these difficulties were recently alleviated by

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