Department of Cataract, Aier Eye Hospital of Wuhan University (Wuhan Aier Eye Hospital), Wuhan, Hubei Province, People's Republic of China.
Department of Cataract, Shangrao Aier Eye Hospital, Shangrao, Jiangxi Province, People's Republic of China.
Indian J Ophthalmol. 2024 Sep 1;72(9):1359-1362. doi: 10.4103/IJO.IJO_39_24. Epub 2024 Aug 23.
The objective of this retrospective cohort study is to compare the Pacman cutting technique with the trisection cutting technique for hydrophobic acrylic intraocular lens extraction. A total of 29 eyes of 29 patients requiring IOL removal were selected and enrolled in this study. The patients in group 1 (13 cases) underwent the conventional trisection cut technique from May 2022 to Dec. 2022. The patients in group 2 (16 cases) underwent the modified partial IOL cutting technique (Pacman cutting technique) from Jan. 2023 to June 2023. Corneal endothelial cells (CECs) count, slit-lamp examination, and intraocular pressure (IOP) measurement were conducted at all preoperative and postoperative visits. Surgical time, intraoperative and postoperative complications were recorded. The mean surgical time was 3.48 ± 1.54 minutes (range: 2 to 7 minutes) for the trisection cut technique group and 2.52 ± 1.18 minutes (range: 2 to 5 minutes) for the Pacman cut technique group. There was a statistically significant difference between the two groups in terms of surgical duration (P < .05). There was no difference in the mean preoperative CEC counts (group 1: 1924 ± 462, group 2: 1876 ± 516, P > 0.05). However, three months after the operation, the count of CECs decreased by 213 ± 72 (11%) in group 1 and 142 ± 57 (8%) in group 2. The decrease in CECs in group 1 was greater than that in group 2, and the difference was statistically significant (P < .05). There were no serious complications affecting vision in either group during the follow-up period. This study showed that the Pacman cutting technique is more effective and safer than the trisection cutting technique for hydrophobic acrylic IOL removal.
本回顾性队列研究旨在比较 Pacman 切割技术与三段式切割技术在疏水性丙烯酸人工晶状体取出术中的应用。共纳入 29 例（29 只眼）需行 IOL 取出术的患者，其中 13 例（13 只眼）患者在 2022 年 5 月至 12 月接受常规三段式切割技术，16 例（16 只眼）患者在 2023 年 1 月至 6 月接受改良的部分 IOL 切割技术（Pacman 切割技术）。所有患者术前及术后均行角膜内皮细胞（CEC）计数、裂隙灯检查及眼压（IOP）测量。记录手术时间、术中及术后并发症。三段式切割技术组的平均手术时间为 3.48 ± 1.54 分钟（范围：2 至 7 分钟），Pacman 切割技术组为 2.52 ± 1.18 分钟（范围：2 至 5 分钟）。两组手术时间比较，差异有统计学意义（P <.05）。两组术前 CEC 计数的平均水平差异无统计学意义（组 1：1924 ± 462，组 2：1876 ± 516，P > 0.05）。然而，术后 3 个月，组 1 的 CEC 计数减少了 213 ± 72（11%），组 2 减少了 142 ± 57（8%）。组 1 的 CEC 减少量大于组 2，差异有统计学意义（P <.05）。随访期间两组均无影响视力的严重并发症。本研究表明，与三段式切割技术相比，Pacman 切割技术在疏水性丙烯酸人工晶状体取出术中更有效、更安全。
