Histology of wound, vitreous, and retina in experimental posterior penetrating eye injury in the rhesus monkey.

Abstract:

:We performed a histologic study to support our clinical observations on the mechanisms responsible for traction retinal detachment after a penetrating injury in the rhesus monkey eye. The monkey eyes (40 eyes; 40 monkeys) were characterized by intraocular fibrosis with the formation of a cyclitic membrane and epiretinal and subretinal membranes. The progression to a fibrous ingrowth from the wound occurred only in eyes with blood in the vitreous. The intravitreal fibroblastic proliferation had its origin mainly from the stroma of the ciliary body and choroid at the wound but probably also from the nonpigmented ciliary epithelium. A fibroblastic response was present within the vitreous as early as four days after injury, and had progressed to form a cyclitic membrane by six weeks. Epiretinal membranes were identified as early as four weeks after injury. They were most prominent over the peripheral retina anterior to the equator. It is likely that they are derived from multiple cellular sources including the fibrous ingrowth from the wound but they were also connected to the surface of the retina by bridges of tissue indicating a glial origin. The subretinal membranes appeared to be derived from both retinal pigment epithelium cells and glial cells.

journal_name

Am J Ophthalmol

authors

Cleary PE,Ryan SJ

doi

10.1016/0002-9394(79)90469-0

subject

Has Abstract

pub_date

1979-08-01 00:00:00

pages

221-31

issue

2

eissn

0002-9394

issn

1879-1891

pii

0002-9394(79)90469-0

journal_volume

88

pub_type

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