Department of Ophthalmology, The Institute of Vision Research, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemungu, Seoul, 03722, Republic of Korea.
Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.
Sci Rep. 2022 Sep 24;12(1):15973. doi: 10.1038/s41598-022-20403-4.
This study was to analyze the clinical outcomes of immediate reapplication of small-incision lenticule extraction (SMILE) without adjusting the surgical parameters after suction loss and to compare the outcomes with contralateral eyes that underwent uneventful SMILE. A total of 74 patients who underwent uneventful SMILE in one eye (Uneventful group) and immediate reapplication of SMILE without adjusting the surgical parameters after suction loss in the contralateral eye (Suction loss group) were included. Suction loss occurred during the posterior lenticule surface cut in 39 eyes (53%) and the cap cut in 35 eyes (47%). Surgical outcomes, including visual acuity, manifest refraction, keratometry, and corneal wavefront aberrations, were evaluated at 6 months postoperatively. The mean uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), and spherical equivalent were - 0.02 ± 0.07, - 0.04 ± 0.04, and - 0.10 ± 0.46 diopters (D), respectively, in the Suction loss group and - 0.02 ± 0.07, - 0.04 ± 0.05, and - 0.19 ± 0.53 D, respectively (P = 0.965, 0.519, and 0.265, respectively), in the Uneventful group. Changes between the preoperative and 6-month postoperative total corneal aberrations, spherical aberrations, and horizontal and vertical coma did not significantly differ between the Suction loss and Uneventful groups. Immediate reapplication of SMILE without adjusting the surgical parameters after suction loss resulted in good surgical outcomes that were comparable with those of uneventful SMILE.
本研究旨在分析小切口微透镜提取（SMILE）后因吸力损失而无需调整手术参数立即再次应用的临床结果，并与未发生吸力损失的对侧眼进行比较。共纳入 74 例在一只眼（未发生事件组）中成功进行 SMILE 且在对侧眼因吸力损失后无需调整手术参数立即再次进行 SMILE 的患者。39 只眼（53%）在进行后透镜表面切割时和 35 只眼（47%）在进行帽切割时发生吸力损失。术后 6 个月评估手术结果，包括视力、显式折射、角膜曲率计和角膜波前像差。吸力损失组的平均未矫正距离视力（UDVA）、矫正距离视力（CDVA）和球镜等效值分别为 -0.02±0.07、-0.04±0.04 和 -0.10±0.46 屈光度（D），未发生事件组分别为 -0.02±0.07、-0.04±0.05 和 -0.19±0.53 D（P=0.965、0.519 和 0.265）。吸力损失组和未发生事件组之间术前和术后 6 个月的总角膜像差、球镜像差以及水平和垂直彗差的变化无显著差异。在吸力损失后无需调整手术参数即可立即再次进行 SMILE 可获得良好的手术结果，与未发生吸力损失的 SMILE 结果相当。
