Postoperative ocular higher-order aberrations and contrast sensitivity: Femtosecond lenticule extraction versus pseudo small-incision lenticule extraction
Postoperative ocular higher-order aberrations and contrast sensitivity: Femtosecond lenticule extraction versus pseudo small-incision lenticule extraction
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DOI：
10.1016/j.jcrs.2014.07.032
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发表时间：
2015-03-01
影响因子：
2.8
通讯作者：
Mehta, Jodhbir S.
中科院分区：
文献类型：
--
作者：
Tan, Deborah K. L.;Tay, Wan Ting;Mehta, Jodhbir S.
目得：评价和比较飞秒激光视网膜摘除术（FLEx）和伪小切口视网膜摘除术（SMILE）后对比敏感度和高阶像差（HOA）的变化。单位：新加坡国家眼科中心，新加坡。设计：回顾性病例系列。方法：患者在2010年3月至2011年12月期间接受了飞秒激光碎石术（第1组）或伪小切口碎石术（第2组）。主要结果指标为术后1、3、6和12个月的显性屈光度、HOA和对比敏感度。结果：招募了52名连续患者（102只眼），其中第1组21名患者（42只眼），第2组31名患者（60只眼）。12个月时，第2组的未矫正和矫正远视力显著优于第1组（P = .032）。1年时，3阶或4阶像差无显著增加，术前或术后两组之间无显著差异。在1年时，第2组的中间视觉对比敏感度在1.5周/度（cpd）时显著增加（P = 0.008），第1组中未发现，第2组在6.0 cpd时的明视对比敏感度较高（P = .027）。结论：这些结果表明，屈光矫正术是安全有效的，在1年时没有显著诱导HOA或对比敏感度恶化。HOA的诱导在两种屈光度矫正术的变体之间没有显著差异。然而，在伪小切口虹膜摘除术后，明视对比敏感度有显著改善，并持续1年。(C)2015 ASCRS和ESCRS
PURPOSE: To evaluate and compare changes in contrast sensitivity and ocular higher-order aberrations (HOAs) after femtosecond lenticule extraction (FLEx) and pseudo small-incision lenticule extraction (SMILE).SETTING: Singapore National Eye Centre, Singapore.DESIGN: Retrospective case series.METHOD: Patients had femtosecond lenticule extraction (Group 1) or pseudo small-incision lenticule extraction (Group 2) between March 2010 and December 2011. The main outcome measures were manifest refraction, HOAs, and contrast sensitivity 1, 3, 6, and 12 months postoperatively.RESULTS: Fifty-two consecutive patients (102 eyes) were recruited, 21 patients (42 eyes) in Group 1 and the 31 patients (60 eyes) in Group 2. The uncorrected and corrected distance visual acuities were significantly better in Group 2 than in Group 1 at 12 months (P = .032). There was no significant increase in 3rd- or 4th-order aberrations at 1 year and no significant difference between the 2 groups preoperatively or postoperatively. At 1 year, there was a significant increase in mesopic contrast sensitivity in Group 2 at 1.5 cycles per degree (cpd) (P = .008) that was not found in Group 1, and photopic contrast sensitivity at 6.0 cpd was higher in Group 2 (P = .027).CONCLUSIONS: These results indicate that refractive lenticule extraction is safe and effective with no significant induction of HOAs or deterioration in contrast sensitivity at 1 year. Induction of HOAs was not significantly different between both variants of refractive lenticule extraction. However, there was significant improvement in photopic contrast sensitivity after pseudo small-incision lenticule extraction, which persisted through 1 year. (C) 2015 ASCRS and ESCRS