Anti-VEGF, Branch Retinal Vein Occlusion, Vitrectomy
Conditions
Brief summary
To evaluate the efficacy and safety of Anti-VEGF instead of intraoperative fan-shaped photocoagulation in BRVO combined with vitreous hemorrhage.
Interventions
vitreoretinal surgery combined with intraoperative anti-VEGF
vitreoretinal surgery combined with intraoperative fan-shaped photocoagulation
Sponsors
Study design
Eligibility
Inclusion criteria
1. Age ≥ 18 years old; 2. BRVO is diagnosed 3. Vitreous hemorrhage 4. Vitreous hemorrhage combined with mild retinal fibrovascular proliferation (early fibrous vascular membrane, thin fibrous vascular membrane, loose retinal adhesion and intact local retinal structure)
Exclusion criteria
1. BRVO combined with severe retinal fibrovascular proliferation (long-term fibrovascular membrane, thick fibrous vascular membrane and tightly attached to the retina, deformation of local retinal, retinal tear or suspension of retinal vein ) 2. BRVO combined with retinal detachment 3. Retinal veins are completely whitened 4. iris neovascularization or neovascular glaucoma 5. Combined glaucoma 6. combined with other retinopathy 7. Received anti-VEGF treatment within 3 months before surgery
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Mean change from baseline in best-corrected visual acuity (BCVA) | 3 years | Assessed using the ETDRS protocol |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Mean change from baseline in visual field | 3 years | Assessed on Humphery(30-2 and 60-4) |
| chang from baseline in structure of retina | 3 years | Assessed on Optical Coherence Tomography(OCT) |
| chang from baseline in retinal neovascularization | 3 years | Assessed on Fundus Fluorescein Angiography(FFA) |