Comparison between Glaucomatous and Non-glaucomatous Eyes with Unilateral Retinal Vein Occlusion in the Fellow Eye
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Purpose: To evaluate and compare the clinical and angiographic characteristics of retinal vein occlusion (RVO)in glaucomatous and non-glaucomatous eyes with unilateral RVO in the fellow eye. Methods: Twenty-one glaucomatous eyes (GL group) and 25 age-matched non-glaucomatous eyes (non-GLgroup) with unilateral RVO in the fellow eye were included in this study. Fluorescein angiographic images wereassessed in both groups by 3 retina specialists in order to determine the RVO occlusion site. The occlusionsite was divided into 2 types: arteriovenous (AV)-crossing and non-AV-crossing (optic cup or optic nerve sited). The clinical characteristics and prevalence of AV-crossing and non-AV-crossing RVO were comparedbetween the 2 groups. Results: The mean baseline intraocular pressures of the RVO eye and the fellow eye did not differ between the2 groups (RVO eye: 14.3 ± 2.5 mmHg [non-GL group], 15.5 ± 3.9 mmHg [GL group], p = 0.217; fellow eye: 14.4± 2.5 mmHg [non-GL group], 15.7 ± 3.7 mmHg [GL group], p = 0.148). The prevalence of systemic disease didnot differ between the 2 groups (e.g., diabetes mellitus and hypertension, p = 0.802 and 0.873, respectively). AV-crossing RVO was significantly more frequent in the non-GL group (19 eyes; 76%) than in the GL group (4eyes, 19%, p < 0.001). Conclusions: Non-AV-crossing RVO, i.e., optic cup- or optic nerve-sited RVO, is more frequently associatedwith glaucomatous changes in the fellow eye. Therefore, this type of RVO should be monitored more carefullyfor indications of glaucoma in the fellow eye.
Abstract
Purpose: To evaluate and compare the clinical and angiographic characteristics of retinal vein occlusion (RVO)in glaucomatous and non-glaucomatous eyes with unilateral RVO in the fellow eye. Methods: Twenty-one glaucomatous eyes (GL group) and 25 age-matched non-glaucomatous eyes (non-GLgroup) with unilateral RVO in the fellow eye were included in this study. Fluorescein angiographic images wereassessed in both groups by 3 retina specialists in order to determine the RVO occlusion site. The occlusionsite was divided into 2 types: arteriovenous (AV)-crossing and non-AV-crossing (optic cup or optic nerve sited). The clinical characteristics and prevalence of AV-crossing and non-AV-crossing RVO were comparedbetween the 2 groups. Results: The mean baseline intraocular pressures of the RVO eye and the fellow eye did not differ between the2 groups (RVO eye: 14.3 ± 2.5 mmHg [non-GL group], 15.5 ± 3.9 mmHg [GL group], p = 0.217; fellow eye: 14.4± 2.5 mmHg [non-GL group], 15.7 ± 3.7 mmHg [GL group], p = 0.148). The prevalence of systemic disease didnot differ between the 2 groups (e.g., diabetes mellitus and hypertension, p = 0.802 and 0.873, respectively). AV-crossing RVO was significantly more frequent in the non-GL group (19 eyes; 76%) than in the GL group (4eyes, 19%, p < 0.001). Conclusions: Non-AV-crossing RVO, i.e., optic cup- or optic nerve-sited RVO, is more frequently associatedwith glaucomatous changes in the fellow eye. Therefore, this type of RVO should be monitored more carefullyfor indications of glaucoma in the fellow eye.
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