Ultramicrosurgical removal of subretinal hemorrhage in cats

C. A. Toth, J. D. Benner, Leonard M Hjelmeland, M. B. Landers, Lawrence S Morse

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Subretinal hemorrhages are associated with progressive degeneration of the outer retina and a corresponding poor visual prognosis. Mixed results have been reported in previous attempts to remove such subretinal hemorrhages. We developed an ultramicrosurgical system that used the control of a stereotactic micromanipulator to direct a micropipette tip through a small retinotomy into the subretinal space in three cat eyes. Low-dose recombinant tissue plasminogen activator was then introduced into the subretinal space around the subretinal hemorrhage via a controlled microinfusion system. The recombinant tissue plasminogen activator solution facilitated clot lysis and subsequent removal through the micropipette. Light- and electron-microscopic analysis of histopathologic specimens disclosed good preservation of retinal architecture in the three cat eyes in which experimental subretinal hemorrhages were removed. This was in contrast to the retinal degeneration observed in similar but untreated experimental subretinal hemorrhages.

Original languageEnglish (US)
Pages (from-to)175-182
Number of pages8
JournalAmerican Journal of Ophthalmology
Volume113
Issue number2
StatePublished - 1992

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Cats
Hemorrhage
Tissue Plasminogen Activator
Retinal Degeneration
Retina
Electrons
Light

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Ultramicrosurgical removal of subretinal hemorrhage in cats. / Toth, C. A.; Benner, J. D.; Hjelmeland, Leonard M; Landers, M. B.; Morse, Lawrence S.

In: American Journal of Ophthalmology, Vol. 113, No. 2, 1992, p. 175-182.

Research output: Contribution to journalArticle

Toth, C. A. ; Benner, J. D. ; Hjelmeland, Leonard M ; Landers, M. B. ; Morse, Lawrence S. / Ultramicrosurgical removal of subretinal hemorrhage in cats. In: American Journal of Ophthalmology. 1992 ; Vol. 113, No. 2. pp. 175-182.
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