AI Article Synopsis
- The study aimed to assess the stability of corneal astigmatism and higher-order aberrations after a specific eye surgery combining femtosecond-assisted phacoemulsification and arcuate keratotomy.
- It included 50 patients, revealing a significant reduction in corneal astigmatism from an average of 1.35 D preoperatively to approximately 0.67 D at 2 months and 0.74 D at 2 years post-surgery, with stability observed over time.
- The researchers found that while higher-order aberrations increased after surgery, there were no significant differences between measurements taken at 2 months and 2 years, indicating the technique shows promise for consistent results.
Article Abstract
Purpose: 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-μm 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.
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| http://dx.doi.org/10.1016/j.ajo.2016.07.022 | DOI Listing |
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