Pterygium and pinguecula: electron microscopic study.

@article{Hogan1967PterygiumAP,
  title={Pterygium and pinguecula: electron microscopic study.},
  author={Michael J. Hogan and Jorge Alvarado},
  journal={Archives of ophthalmology},
  year={1967},
  volume={78 2},
  pages={
          174-86
        }
}
Eight pterygia alone, eight pterygia combined with pingueculae, and three pingueculae were studied by light and electron microscopy to evaluate the changes in collagen and elastic tissue that occur in these conditions. Hyaline degeneration in these growths results from an increase in the amount of a substance composed of degenerating collagen fibers, altered ground substance, abnormal conjunctival cells, and areas of increased electron density. Elastoid fibers, which are prominent in all… CONTINUE READING

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