Purpose: To investigate the outcomes of vitrectomy with fovea-sparing internal limiting membrane (ILM) peeling (FSIP) for epiretinal membrane foveoschisis based on new optical coherence tomography definitions. Methods: 27 eyes of 28 patients (67.2 ± 10.5 years old) who underwent vitrectomy with FSIP without gas tamponade for epiretinal membrane foveoschisis were included. All patients underwent follow-up examinations for at least 12 months. In the FSIP technique, the ILM is peeled off in a donut shape, preserving the foveal ILM. The logarithm of the minimal angle of resolution best-corrected visual acuity (logMAR BCVA), central macular thickness (CMT), and surgical complications were examined. Results: The BCVA at 12 months improved significantly from baseline (p < 0.001). Baseline ellipsoid zone defects were found in 3 eyes (10%), and all defective eyes had recovered at 12 months. CMT decreased significantly from baseline (p < 0.001). Acute macular edema, full-thickness macular hole, and recurrence of epiretinal membrane were not observed during follow-up. Conclusion: FSIP achieved good visual outcome and retinal morphological change. Moreover, FSIP might avoid acute macular edema in epiretinal membrane foveoschisis surgery.


中文翻译：

---

保留中央凹内界膜剥离治疗视网膜前膜中央凹劈裂的疗效

目的：基于新的光学相干断层扫描定义，研究玻璃体切除术与保留中央凹内界膜 (ILM) 剥离 (FSIP) 对视网膜前膜中央凹劈裂的结果。方法：28 名患者（67.2 ± 10.5 岁）的 27 只眼因视网膜前膜中央凹劈裂而接受 FSIP 玻璃体切除术且无气体填塞。所有患者均接受至少12个月的随访检查。在 FSIP 技术中，ILM 以甜甜圈形状剥离，保留中央凹 ILM。检查最小分辨率最佳矫正视力（logMAR BCVA）、中央黄斑厚度（CMT）和手术并发症的对数。结果：12 个月时的 BCVA 较基线显着改善（p < 0.001）。3只眼（10%）发现基线椭球区缺陷，所有有缺陷的眼睛都在 12 个月时恢复。CMT 从基线显着下降 (p < 0.001)。随访期间未见急性黄斑水肿、黄斑全层裂孔、视网膜前膜复发。结论：FSIP取得了良好的视觉效果和视网膜形态学改变。此外，FSIP 可能避免视网膜前膜中央凹劈裂手术中的急性黄斑水肿。