目的：观察黄斑区孔源性视网膜脱离巩膜外加压术后视网膜下液厚度与脉络膜厚度的变化。

方法：回顾性非随机临床研究。共23例23眼黄斑区孔源性视网膜脱离患者成功采用巩膜外加压术联合冷冻，排除复发性视网膜脱离和增殖性视网膜前膜患者。采用OCT检测黄斑中心凹下视网膜下液厚度、中心凹下脉络膜厚度。对比观察分析患眼术前，术后1wk，1，3，6、12mo平均最佳矫正视力(BCVA，LogMAR)、黄斑中心凹下视网膜下液厚度、中心凹下脉络膜厚度的变化情况，分析视网膜下液厚度与脉络膜厚度的变化。

结果：术后1wk所有患者均有视网膜下液。术后黄斑中心凹下视网膜下液厚度逐渐下降。术后1wk，中心凹下脉络膜厚度增加，随后中心凹下脉络膜厚度逐渐下降。术后1wk BCVA为0.60±0.35，与术前BCVA比较，差异有统计学意义(t=6.35，P<0.01)。

结论：视网膜下液随时间逐渐吸收，脉络膜厚度早期增厚后期逐渐下降。视网膜脱离巩膜外加压术治疗累及黄斑区孔源性视网膜脱离，早期提高患者的视力。

METHODS: Retrospective observational case series. Twenty-three patients with macula-off RRD underwent successful SBS combined with cryotherapy. Patients with recurrent retinal detachment and proliferative preretinal membranes were excluded. Optical coherence tomography(OCT)was used to measure subfoveal SFT and subfoveal CT. The OCT images were then evaluated preoperatively and postoperatively at 1wk, 1, 3, 6, and 12mo. Best-corrected visual acuity(BCVA)was measured preoperatively and postoperatively.

RESULTS: All of the patients had subretinal fluid 1wk after operation. Subfoveal SFT gradually reduced over time. The subfoveal CT was thicker 1wk postoperatively and gradually decreased subsequently. The BCVA(mean±SD, LogMAR)was 0.60±0.35, which was a statistically significant change from the preoperative BCVA(t=6.35, P<0.01).

CONCLUSION: The subretinal fluid was gradually absorbed with time, and the subfoveal CT gradually decreased after the early thickening. The SBS rapidly improved the visual acuity of the patients after the early postoperative period.