Abnormal Scleral Collagen in Nanophthalmos: An Ultrastructural Study

Donald H. Stewart, Barbara W. Streeten, Robert J. Brockhurst, Douglas R. Anderson, Tatsuo Hirose, J. Donald M. Gass

Research output: Contribution to journalArticle

57 Scopus citations

Abstract

Ten patients with bilateral nanophthalmos underwent sclerectomies for uveal effusion. Ultrastructural examination of the sclera revealed abnormal collagen in seven patients. Four showed dramatic fraying of the collagen fibrils into fine filaments 2 to 3 nm in diameter. In three of these cases and three other cases without fraying, there were foci of 10- to 35-nm small collagen fibrils, some appearing to arise by splitting of otherwise normal collagen fibrils. In areas of fraying, elastic fibers were absent. All patients had a wider range of collagen diameters than did control subjects. The youngest patient with fraying also had Hallermann-Streiff syndrome. In three patients, no collagen abnormality was found. The clinical feature correlating best with the presence of abnormal collagen was an extremely small eye, since the three patients without collagen abnormality had the largest eyes (range of anteroposterior diameters, 19.2 to 20.3 mm). Nanophthalmos appears to result from several distinct defects.

Original languageEnglish (US)
Pages (from-to)1017-1025
Number of pages9
JournalArchives of ophthalmology
Volume109
Issue number7
DOIs
StatePublished - Jul 1991

ASJC Scopus subject areas

  • Ophthalmology

Fingerprint Dive into the research topics of 'Abnormal Scleral Collagen in Nanophthalmos: An Ultrastructural Study'. Together they form a unique fingerprint.

  • Cite this

    Stewart, D. H., Streeten, B. W., Brockhurst, R. J., Anderson, D. R., Hirose, T., & Gass, J. D. M. (1991). Abnormal Scleral Collagen in Nanophthalmos: An Ultrastructural Study. Archives of ophthalmology, 109(7), 1017-1025. https://doi.org/10.1001/archopht.1991.01080070129050