Background: To evaluate the efficacy of intravitreal injection of conbercept (IVC) with or without laser photocoagulation for recurrent macular edema secondary to branch retinal vein occlusion (BRVO). Methods: 82 patients (82 eyes) with recurrent macular edema secondary to BRVO were collected. The central macular thickness (CMT) and best corrected visual acuity (BCVA) were recorded. Results: The BCVA in both groups was significantly superior to that before treatment (P<0.05). Compared with initial values, CMT was reduced significantly in both groups (P<0.05). But at 1 month to 6 month after treatment, there are no significant difference was observed between the two groups (P>0.05). In the combined therapy group for Hemispheric Retinal Vein Occlusion, we observed a lower number of reinjections during follow-up. Conclusion: Conbercept with or without retinal photocoagulation can effectively improve the visual acuity and reduce the CMT.
PurposeTo investigate the long-term surgical outcomes after treatment with pars plana vitrectomy (PPV) combined with photocoagulation in different severities of branch retinal vein occlusion (BRVO) with vitreous hemorrhage (VH).MethodsWe retrospectively reviewed the medical records of 117 eyes of 117 patients who underwent PPV for VH associated with BRVO and who were followed up for at least 12 months. Preoperative best-corrected visual acuity (BCVA), surgical intervention, final BCVA, and central foveal thickness (CFT) were evaluated using optical coherence tomography. According to the intraoperative observation, we divided them into four different types: Grade I, pure persistent VH; Grade II,VH with epiretinal membrane (EM) (Grade IIa, VH with EM without macular involvement; Grade IIb, VH with EM with macular involvement); and Grade III,VH with tractive retinal detachment. Different surgical methods were applied according to the different retinal conditions.ResultsBCVA significantly improved at final follow-up in all groups. There was no significant difference among the four groups in terms of preoperative BCVA, final BCVA, CFT, and the number of patients whose macular edema recurred after surgery(p>0.05), but there was a significant difference in vision improvement(p<0.05). Vision improvement in the Grade IIb group was significantly worse than in the Grade I group(p=0.006) and Grade IIa group(p=0.046).The percentage of patients in the Grade I, Grade IIa, Grade IIb, and Grade III groups underwent further laser treatment after surgery was 0%,8.3%,16.3%, and 23.5%, respectively(p<0.05).ConclusionVitrectomy is a safe and effective treatment for BRVO with VH. Visual acuity improvement was significantly worse when the EM had macular involvement (Grade IIb).
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