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Uveal damage in secondary glaucoma. A morphometric study.

M Ueno1, G O Naumann

  • 1Augenklinik der Universität Erlangen-Nürnberg, Federal Republic of Germany.

Graefe'S Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Fur Klinische Und Experimentelle Ophthalmologie
|January 1, 1989
PubMed
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Secondary glaucoma causes significant tissue changes in the ciliary body and retinal pigment epithelium. This morphometric study quantifies these glaucomatous alterations, revealing thinner ciliary muscles and reduced pigment epithelial cell height.

Area of Science:

  • Ophthalmology
  • Histopathology
  • Glaucoma Research

Background:

  • Secondary glaucoma is a complex ocular condition.
  • Understanding tissue-level changes is crucial for glaucoma management.
  • Previous studies have not fully quantified ciliary body and retinal changes in secondary glaucoma.

Purpose of the Study:

  • To investigate and quantify histopathologic changes in the ciliary body and retinal pigment epithelium in eyes with secondary glaucoma.
  • To compare these changes with those in eyes with malignant melanoma (control group).

Main Methods:

  • A morphometric study comparing eyes with secondary glaucoma and eyes with malignant melanoma.
  • Histopathologic examination of ocular tissues.
  • Quantitative analysis of ciliary muscle thickness, connective-tissue layer thickness, stromal width, number of ciliary processes, and retinal pigment epithelial cell height.

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Main Results:

  • Eyes with secondary glaucoma showed significantly lower mean thicknesses of the ciliary muscle and inner connective-tissue layer of the pars plicata compared to melanomatous eyes (P < 0.001).
  • The mean width of the stroma of ciliary processes was significantly lower in glaucomatous eyes (P < 0.001).
  • A significant decrease in the mean number of ciliary processes and mean height of pigment epithelial cells in the midperipheral retina was observed in glaucomatous eyes (P < 0.001 and P < 0.05, respectively).

Conclusions:

  • The study reveals significant quantitative glaucomatous tissue changes in the ciliary body and retinal pigment epithelium.
  • These findings highlight specific morphometric alterations associated with secondary glaucoma.
  • The results provide a basis for further research into the pathogenesis and treatment of secondary glaucoma.