Paula JS, Ribeiro VRC, Sampaio RB, Mendonca RJ, Haddad A, Tedesco AC, Coutinho-Netto J, Haendchen HA, Jorge R. Rabbit rubeosis iridis induced by intravitreal latex-derived angiogenic fraction.
Curr Eye Res 2011;
36:857-9. [PMID:
21599469 DOI:
10.3109/02713683.2011.576797]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE
To describe the presence of iris neovascularization in a rabbit-model of retinal neovascularization induced by the intravitreal injection of latex-derived angiogenic fraction microspheres (LAF).
MATERIALS AND METHODS
Eight New Zealand rabbits received one intravitreal injection of PLGA (L-lactide-co-glycolide) microspheres with 50 ug of LAF in the right eye (Group A). Microspheres without the LAF (0.1 ml) were injected in controls (Group B; n = 8). Follow-up with clinical evaluation and iris fluorescein angiography was performed after 4 weeks when eyes were processed for light microscopy.
RESULTS
All eyes from Group A showed significant vascular dilation, conjunctival hyperemia and neovascularization on the iris surface, after LAF injection. No vascular changes were observed in Group B.
CONCLUSIONS
The intravitreal injection of microspheres containing the LAF can induce rubeosis iridis in rabbits and could be used as a simple experimental model for iris neovascularization.
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