April 1971
Volume 10, Issue 4
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Articles  |   April 1971
Scanning Electron Microscopic Studies on the Development of the Iridocorneal Angle in Human Eyes
Author Affiliations
  • HANS-ARNE HANSSON
    Departments of Histology and Ophthalmology, and the Neuropathological Laboratory, Department of Pathology I, University of Göteborg, Göteborg, Sweden
  • TORD JERNDAL
    Departments of Histology and Ophthalmology, and the Neuropathological Laboratory, Department of Pathology I, University of Göteborg, Göteborg, Sweden
Investigative Ophthalmology & Visual Science April 1971, Vol.10, 252-265. doi:
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      HANS-ARNE HANSSON, TORD JERNDAL; Scanning Electron Microscopic Studies on the Development of the Iridocorneal Angle in Human Eyes. Invest. Ophthalmol. Vis. Sci. 1971;10(4):252-265.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

The structural changes occurring in the iridocorneal angle of human eyes from fetuses, premature and mature infants, and adults were studied with light and electron microscopy. The scanning electron microscopic technique with the use of freeze-dried tissue pieces provided much new information. The iridocorneal angle is covered by a continuous monolayer of polyhedronal endothelial cells up to about eight months gestation age. The uveal meshwork consists of two parts, each of which has its own characteristic structure. The endothelial cells in the iridocorneal angle change their shape and become separated by holes of varying sizes. They are observed to be arranged as sheaths in several layers. The trabeculae in the adult eye are covered with multipolar endothelial cells arranged in several layers. The lamellar structure of the corneoscleral trabeculae is observed readily on scanning electron micrographs. The results obtained are discussed in relation to previous studies on the iridocorneal angle with light and transmission electron microscopy. The possible role of a persisting continuous endothelial membrane in the iridocorneal angle for the pathogenesis of congenital galucoma is stressed.

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