Retinal pathology in the Kearns-Sayre syndrome.
Journal Article (Journal Article)
Examination of the retinal tissues obtained at necropsy from a 14-year-old boy with Kearns-Sayre syndrome showed marked photoreceptor and pigment epithelial cell loss in the retinal periphery and around the optic nerve head. Electron microscopy of surviving retinal pigment epithelial (RPE) cells indicated a loss of apical microvilli and basal infoldings. The RPE was unusually devoid of melanosomes and showed no evidence of phagocytosis of photoreceptor debris. The cytoplasm of the RPE contained numerous, often enlarged, mitochondria. These structural changes suggested that a breakdown in the energy dependent interrelationships between the RPE and the photoreceptor layer was responsible for the outer retinal degeneration. The finding of numerous macrophages in the subretinal space suggests a secondary inflammatory component in the retinal degeneration.
Full Text
Duke Authors
Cited Authors
- McKechnie, NM; King, M; Lee, WR
Published Date
- January 1, 1985
Published In
Volume / Issue
- 69 / 1
Start / End Page
- 63 - 75
PubMed ID
- 3965031
Pubmed Central ID
- PMC1040525
International Standard Serial Number (ISSN)
- 0007-1161
Digital Object Identifier (DOI)
- 10.1136/bjo.69.1.63
Language
- eng
Conference Location
- England