Gribomont A C, Charlier L
Service d'Ophtalmologie, Cliniques Universitaires St-Luc UCL, Avenue Hippocrate, 10, 1200 Bruxelles.
Bull Soc Belge Ophtalmol. 2007(305):13-9.
the goal is to evaluate the anatomical (macular edema) and functional (visual acuity) efficacy of radial optic neurotomy in central retinal vein occlusion.
the retrospective study is dealing with 15 eyes treated with radial optic neurotomy and at least a 6-month follow-up. The main study parameters are the visual acuity, the characteristics of the vein occlusion with fluorescein angiography, and those of the macular edema with optical coherence tomography.
mean preoperative visual acuity was 0.07 (0.003-0.4). At 6 months, mean visual acuity was 0.12 (0.003-0.3) for 14 cases, one eye being blind. Visual acuity was improved in 4 cases (26%), deteriorated in 2 cases and equal in 9 cases. Preoperative fluorescein angiography showed a perfused form in 9 cases and an ischemic one in 6 cases. At 6 months, fluorescein angiography was available in 12 out of the 15 cases. It showed ischemia in 4 cases, macular edema in 4 cases, a scarred macula in 2 cases. The posterior pole was hidden by blood in the last 2 cases. Optical coherence tomography was performed preoperatively and at 6 months in 8 out of the 15 cases. It showed macular edema in every case preoperatively. At 6 months, there was a worsening in 2 cases (25%), an improvement in 4 cases. In 2 cases, edema was replaced by a macular scar.
at 6 months, this study shows any improvement of the visual acuity in 26% of the cases. This result does not allow us to conclude that optical radial neurotomy has any role to play in the treatment of central retinal vein occlusion.
目的是评估放射状视神经切开术治疗视网膜中央静脉阻塞时的解剖学（黄斑水肿）和功能（视力）疗效。
这项回顾性研究涉及15只接受放射状视神经切开术且至少随访6个月的眼睛。主要研究参数包括视力、荧光素血管造影显示的静脉阻塞特征以及光学相干断层扫描显示的黄斑水肿特征。
术前平均视力为0.07（0.003 - 0.4）。6个月时，14例患者的平均视力为0.12（0.003 - 0.3），1只眼失明。4例（26%）视力改善，2例视力恶化，9例视力不变。术前荧光素血管造影显示9例为灌注型，6例为缺血型。6个月时，15例中有12例可进行荧光素血管造影。结果显示4例缺血，4例黄斑水肿，2例黄斑瘢痕形成。最后2例后极部被血液遮挡。15例中有8例在术前和6个月时进行了光学相干断层扫描。术前所有病例均显示黄斑水肿。6个月时，2例（25%）病情恶化，4例病情改善。2例水肿被黄斑瘢痕取代。
6个月时，本研究显示26%的病例视力有任何改善。该结果使我们无法得出放射状视神经切开术在视网膜中央静脉阻塞治疗中起任何作用的结论。
