Effect of laser photocoagulation on the retinal vessel diameter in branch and macular vein occlusion

Archives of Ophthalmology
Noémi MaárL Schmetterer

Abstract

To investigate the response of retinal vessel diameters to photocoagulation treatment and their role for the success of laser treatment in patients with retinal vein occlusion. The study included 14 patients with branch vein occlusion or macular vein occlusion. The ophthalmologic examination included best-corrected visual acuity, biomicroscopy, fundus photography, and fluorescein angiography. Retinal vessel diameters were quantified before and after laser photocoagulation using a retinal vessel analyzer. Retinal vessel diameters. In cases manifesting macular vein occlusions, no significant change of the vessel diameter in any vessel was observed during the follow-up period. In the group with branch vein occlusion, all vessels tended to constrict after the laser photocoagulation. The effect of laser treatment on retinal vessel diameters was significant for superotemporal (P =.045, analysis of variance [ANOVA]) and inferotemporal branch veins (P =.03, ANOVA). Vasoconstriction was more pronounced in the occluded branch veins (P =.009, ANOVA) compared with the nonaffected veins (P =.12; ANOVA). The change of visual acuity after 3 months was correlated with the change of vessel diameter 3 months after laser treatment for occluded ve...Continue Reading

Citations

Dec 2, 2017·Clinical & Experimental Ophthalmology·Alexander NewmanRobert Casson
Nov 7, 2006·Acta Ophthalmologica Scandinavica·Sobha SivaprasadSusan Lightman
Oct 6, 2007·Clinical Reviews in Allergy & Immunology·D YehudaiE Toubi
May 2, 2008·Progress in Retinal and Eye Research·Constantin J PournarasEinar Stefansson

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