Corneal Astigmatism and Aberrations After a Combined Femtosecond-Assisted Phacoemulsification and Arcuate Keratotomy: Two-Year Results
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AbstractPURPOSE: To investigate the stability of corneal astigmatism and higher-order aberrations after combined femtosecond-assisted phacoemulsification and arcuate keratotomy.DESIGN: Retrospective, interventional case series.METHODS: Surgery was performed using a VICTUS (Bausch & Lomb Inc, Dornach, Germany) platform. A single, 450-mu m deep, arcuate keratotomy was paired at the 8-mm zone with the main phacoemulsification incision in the opposite meridian. The keratotomy incisions were not opened. Corneal astigmatism and higher-order aberration measurements obtained preoperatively and at 2 months and 2 years postoperatively were analyzed.RESULTS: Fifty eyes of 50 patients (mean age 66.2 +/- 10.5 years) were included. The mean preoperative corneal astigmatism was 1.35 +/- 0.48 diopters (D). This was reduced to 0.67 +/- 0.54 D at 2 months and 0.74 +/- 0.53 D at 2 years postoperatively (P < .001). There was no statistically significant difference between postoperative corneal astigmatism over 2 years (P = .392). Both magnitude of error and absolute angle of error were comparable between the 2 postoperative time points (P > .283). At postoperative 2 months and 2 years, 72% and 70% of eyes were within 15 degrees of preoperative meridian of astigmatism, respectively. All wavefront measurements increased significantly at 2 months and 2 years (P < .007), except spherical aberration (P > .150). There was no significant difference in higher-order aberrations between 2 months and 2 years postoperatively (P > .486).CONCLUSIONS: Our study showed the stability of femtosecond-assisted arcuate keratotomy. Further studies using other platforms and nomograms are needed to corroborate the findings of this study. (C) 2016 Elsevier Inc. All rights reserved.
All Author(s) ListChan TCY, Ng ALK, Cheng GPM, Wang Z, Woo VCP, Jhanji V
Journal nameAmerican Journal of Ophthalmology
Volume Number170
Pages83 - 90
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesOphthalmology;Ophthalmology

Last updated on 2021-17-01 at 01:37