AI Article Synopsis
- - The study aimed to compare the effectiveness of small-incision lenticule extraction and femtosecond laser-assisted LASIK for correcting high myopic astigmatism using vector analysis.
- - Conducted at the Hong Kong Laser Eye Center, the research included 105 patients and focused on various visual outcomes, with no significant differences found between the two surgical techniques in terms of visual acuity or astigmatism correction.
- - The results indicated that both methods provided similar astigmatic correction, suggesting that small-incision lenticule extraction is as effective as LASIK for patients with high myopic astigmatism.
Article Abstract
Purpose: To compare the astigmatic correction in high myopic astigmatism between small-incision lenticule extraction and laser in situ keratomileusis (LASIK) using vector analysis.
Setting: Hong Kong Laser Eye Center, Hong Kong.
Design: Retrospective case series.
Methods: Patients who had correction of myopic astigmatism of 3.0 diopters (D) or more and had either small-incision lenticule extraction or femtosecond laser-assisted LASIK were included. Only the left eye was included for analysis. Visual and refractive results were presented and compared between groups.
Results: The study comprised 105 patients (40 eyes in the small-incision lenticule extraction group and 65 eyes in the femtosecond laser-assisted LASIK group.) The mean preoperative manifest cylinder was -3.42 D ± 0.55 (SD) in the small-incision lenticule extraction group and -3.47 ± 0.49 D in the LASIK group (P = .655). At 3 months, there was no significant between-group difference in uncorrected distance visual acuity (P = .915) and manifest spherical equivalent (P = .145). Ninety percent and 95.4% of eyes were within ± 0.5 D of the attempted cylindrical correction for the small-incision lenticule extraction and LASIK group, respectively (P = .423). Vector analysis showed comparable target-induced astigmatism (P = .709), surgically induced astigmatism vector (P = .449), difference vector (P = .335), and magnitude of error (P = .413) between groups. The absolute angle of error was 1.88 ± 2.25 degrees in the small-incision lenticule extraction group and 1.37 ± 1.58 degrees in the LASIK group (P = .217).
Conclusion: Small-incision lenticule extraction offered astigmatic correction comparable to LASIK in eyes with high myopic astigmatism.
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| http://dx.doi.org/10.1016/j.jcrs.2018.04.038 | DOI Listing |
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View Article and Find Full Text PDFArticle Synopsis
- This study evaluated the effects of LASIK, PRK, and SMILE surgeries on patient-reported outcomes among active-duty U.S. Military Servicemembers, focusing on vision quality and satisfaction before and after surgery.
- A total of 375 Servicemembers underwent these procedures, with results showing that 94-95% achieved 20/20 vision or better, with significant improvements in far vision for LASIK and PRK specifically.
- Overall, all three surgical options provided excellent visual outcomes and minimal side effects, enhancing daily activities for the Servicemembers six months post-operation.
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