Ocular Cyclorotation and Corneal Axial Misalignment in Femtosecond Laser-Assisted Cataract Surgery
Ocular Cyclorotation and Corneal Axial Misalignment in Femtosecond Laser-Assisted Cataract Surgery
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飞秒激光辅助白内障手术中的眼球旋转和角膜轴错位
DOI：
10.1080/02713683.2019.1638943
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发表时间：
2019-07
影响因子：
2
通讯作者：
Chen Weirong
中科院分区：
文献类型：
--
作者：
Xiang Wu;Chen Wan;Liu Rongjiao;Chen Hui;Yang Chunyan;Zhong Liting;Zhang Shaochong;Chen Weirong
摘要目的：探讨飞秒激光辅助白内障手术（FLACS）中眼球旋转和角膜轴向错位的来源。方法：45例（50只眼）接受FLACS（LenSx激光系统，Alcon Inc）的序贯患者。我们从FLACS的视频中截取截图，分析眼球旋转和第一切口与第二切口之间的真实的角度（RAPS）。此外，还计算了晶体透镜倾斜度和主切口与次切口之间的理论角度（TAPS）。结果：眼球旋转的平均绝对值为8.03 ± 4.48度（0-19.1度）。晶体透镜倾斜为3.30 ± 1.44度（0.93-6.44度）。平均术前裸眼视力为0.89 ± 0.50 LogMAR单位。Pearson双变量相关分析显示，眼球旋转与晶体透镜倾斜呈显著正相关（r = 0.37，p = 0.008），眼球旋转与眼轴长度呈负相关（r =-0.29，p = 0.038）。此外，TAPS为89.78 ± 1.45度，RAPS为85.68 ± 2.04度。角度误差为4.11 ± 1.28度（p<0.001）。结论：FLACS中常见眼球旋转。此外，眼轴长度增加与眼球旋转减少相关，晶状体透镜倾斜增加与眼球旋转增加相关。在FLACS弧形切口矫正角膜散光时，应考虑机械系统误差。
ABSTRACT Purpose: To explore ocular cyclorotation and the source of corneal axial misalignment during femtosecond laser-assisted cataract surgery (FLACS). Methods: Forty-five sequential patients (50 eyes) who had undergone FLACS (LenSx Laser System, Alcon Inc) were recruited. We took screenshots from videos of FLACS to analyze ocular cyclorotation and the real angle between primary incision and secondary incision (RAPS). In addition, crystalline lens tilt and theoretic angle between the primary and secondary incisions (TAPS) was also calculated. Results: The mean absolute value of ocular cyclorotation was 8.03 ± 4.48 degrees (0–19.1 degrees). The crystalline lens tilt was 3.30 ± 1.44 degrees (0.93–6.44 degrees). And the mean preoperative uncorrected visual acuity was 0.89 ± 0.50 LogMAR units. Pearson bivariate correlation analysis showed significant positive correlation between ocular cyclorotation with crystalline lens tilt (r = 0.37, p = .008), and ocular cyclorotation negatively correlated with axial length (r = −0.29, p = .038). In addition, the TAPS was 89.78 ± 1.45 degrees, and the RAPS was 85.68 ± 2.04 degrees. The angle error was 4.11 ± 1.28 degrees (p<0.001). Conclusions: Ocular cyclorotation commonly occurred during FLACS. In addition, increased axial length was associated with less ocular cyclorotation and increased crystalline lens tilt was related to more ocular cyclorotation. Importantly, machinery systemic errors during corneal astigmatism correction by arcuate incision in FLACS should be taken into consideration.
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