K 173Visual outcome after vitreoretinal surgery in patients with complicated branch retinal vein occlusion
U. E. M. Flach1, A. Nestler2, F. Faude2, F. G. Holz1
Introduction: Eyes with branch retinal vein occlusion (BRVO) usually have a favourable visual prognosis. Severe visual loss associated with secondary complications is uncommon. We investigated visual outcome in eyes that underwent vitreoretinal surgery for complications due to ischemic and nonischemic BRVO.
Methods: In a retrospective review data from 25 consecutive patients (age 61,2 ± 10 years) were analysed. Mean postoperative follow-up was 14 months. Vitreoretinal surgery was performed 39 ± 65 months after the initial diagnosis of BRVO. Mean visual acuity preoperatively was £ 0,1 in 21 patients (88%). Secondary complications after BRVO necessitating surgery included vitreous hemorrhage (12%), macular pucker (12%), rhegmatogenous retinal detachment (8%), and macular hole (4%).
Results: Postoperative bestcorrected visual acuity was < 0,1 in 10 patients (40%), 0,1-0,4 in 11 (44%) and ³ 0,5 in 4 (16%). In 8 patients additional consecutive vitreoretinal surgery was performed because of recurrent vitreous hemorrhage (3), retinal detachment associated with PVR (2) and macular pucker (3). Patients with a second procedure had a mean visual acuity of 0,05 compared to 0.2 in patients without further surgery.
Conclusions: In most patients vitreoretinal surgery resulted in visual improvement. However, visual outcome in presence of complications secondary to BRVO which require surgical intervention is limited. This is especially the case if further postoperative complications occur.
1Universitäts-Augenklinik Heidelberg, Im Neuenheimer Feld 400, D-69120 Heidelberg