From the Eye Institute of West Florida (Hummel, Diakonis, Desai, Arana, Weinstock), Largo, Florida, and the Ophthalmic Consultants of Long Island (Hummel), Long Island, New York, USA.
From the Eye Institute of West Florida (Hummel, Diakonis, Desai, Arana, Weinstock), Largo, Florida, and the Ophthalmic Consultants of Long Island (Hummel), Long Island, New York, USA.
J Cataract Refract Surg. 2017 Jul;43(7):952-955. doi: 10.1016/j.jcrs.2017.04.034.
To assess ocular cyclorotation of eyes having femtosecond laser-assisted cataract surgery using iris registration.
Eye Institute of West Florida, Largo, Florida, USA.
Retrospective cases series.
Charts of patients who had femtosecond laser-assisted cataract surgery with preoperative and intraoperative iris registration in 1 or 2 eyes between November 2015 and March 2016 were reviewed. Cyclorotation was assessed via iris-registration acquired preoperatively using the Cassini topographer (patient in upright position) and intraoperatively using the iris registration option of the Lensar laser system (patient in supine position) acquired immediately before the laser treatment.
The study comprised 241 patients (337 eyes). The mean age of the 107 men and 134 women was 68.0 years ± 9.0 (SD) (range 37 to 90 years). The mean absolute value of cyclorotation was 5.81 ± 4.20 degrees (range 0 to 17 degrees), which was statistically significant when comparing the preoperative axis with the intraoperative axis deviation (P < .0001). Overall, incyclorotation (67.4%) was more common than excyclorotation (30.9%). In patients having bilateral femtosecond laser-assisted cataract surgery, bilateral incyclorotation (47.37%) was the most common occurrence.
During femtosecond laser-assisted cataract surgery, clinically significant cyclotorsion that might influence astigmatism correction outcomes can occur in patients having cataract extraction. Iris registration was useful in accounting for cyclorotation during this procedure when corneal or intraocular lens-based forms of astigmatic corrections will be used.
利用虹膜定位评估飞秒激光辅助白内障手术术后眼球的眼旋。
美国佛罗里达州西弗拉戈眼科研究所。
回顾性病例系列。
回顾了 2015 年 11 月至 2016 年 3 月期间 1 或 2 只眼接受飞秒激光辅助白内障手术且术前和术中均行虹膜定位的患者的图表。通过术前使用 Cassini topography（患者处于直立位置）获得的虹膜定位和术前即刻激光治疗前使用 Lensar 激光系统的虹膜注册选项获得的术中虹膜注册来评估眼旋（患者处于仰卧位置）。
本研究包括 241 例患者（337 只眼）。107 名男性和 134 名女性的平均年龄为 68.0±9.0 岁（标准差）（范围 37 至 90 岁）。眼旋的平均绝对值为 5.81±4.20 度（范围 0 至 17 度），与术前轴与术中轴偏差相比，差异具有统计学意义（P<.0001）。总体而言，内旋（67.4%）比外旋（30.9%）更常见。在接受双侧飞秒激光辅助白内障手术的患者中，双侧内旋（47.37%）最常见。
在飞秒激光辅助白内障手术中，可能影响散光矫正效果的临床显著眼扭转可能会发生在接受白内障摘除术的患者中。当使用角膜或人工晶状体为基础的散光矫正时，虹膜定位在该手术中对眼旋的补偿很有用。
