Massive Macular Hard Exudates Associated with Branch Retinal Vein Occlusion
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To report four cases of branch retinal vein occlusion (BRVO) with the complication of serous retinal detachment (SRD).
We retrospectively studied four eyes of four patients with macular edema and macular hard exudates associated with midperipheral BRVO. Visual acuity, ophthalmoscopy, fluorescein angiography, and optical coherence tomography findings were evaluated. Three of the four eyes underwent laser photocoagulation in the BRVO area 1 month after the initial visit.
Macular edema consisted of SRD without cystoid macular edema in all eyes. Late-phase fluorescein angiography showed extensive dye leakage in the BRVO area. When SRD was resolved 4 months after the initial examination, hard exudates had increased in the macular area. Although macular hard exudates decreased 1 year after the initial examination, visual acuity remained under 20/20 because of macular atrophy.
SRD is one type of macular edema observed in BRVO. In macula-spared midperipheral BRVO, the SRD originates from a vascular leaking area, and there is a high risk that massive macular hard exudates will develop, which may affect visual recovery. Jpn J Ophthalmol 2005;49:527–529© Japanese Ophthalmological Society 2005
Key wordsbranch retinal vein occlusion macular hard exudates midperipheral optical coherence tomography serous retinal detachment
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