SMILE and Wavefront-Guided LASIK Out-Compete Other Refractive Surgeries in Ameliorating the Induction of High-Order Aberrations in Anterior Corneal SurfaceReportar como inadecuado




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Journal of Ophthalmology - Volume 2016 2016, Article ID 8702162, 7 pages -

Clinical Study

Department of Ophthalmology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China

Department of Ophthalmology, The Hospital of University of Science and Technology of China, Hefei, Anhui, China

Eye Institute of Xiamen University, Medical College of Xiamen University, Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Xiamen, Fujian, China

Received 10 June 2016; Revised 5 September 2016; Accepted 6 September 2016

Academic Editor: Edward Manche

Copyright © 2016 Min-jie Ye et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose. To compare the change of anterior corneal higher-order aberrations HOAs after laser in situ keratomileusis LASIK, wavefront-guided LASIK with iris registration WF-LASIK, femtosecond laser-assisted laser in situ keratomileusis FS-LASIK, and small incision lenticule extraction SMILE. Methods. In a prospective study, 82 eyes underwent LASIK, 119 eyes underwent WF-LASIK, 88 eyes underwent FS-LASIK, and 170 eyes underwent SMILE surgery. HOAs were measured with Pentacam device preoperatively and 6 months after surgery. The aberrations were described as Zernike polynomials, and analysis focused on total HOAs, spherical aberration SA, horizontal coma, and vertical coma over 6 mm diameter central corneal zone. Results. Six months postoperatively, all procedures result in increase of anterior corneal total HOAs and SA. There were no significant differences in the induced HOAs between LASIK and FS-LASIK, while SMILE induced fewer total HOAs and SA compared with LASIK and FS-LASIK. Similarly, WF-LASIK also induced less total HOAs than LASIK and FS-LASIK, but only fewer SA than FS-LASIK . No significant difference could be detected in the induced total HOAs and SA between SMILE and WF-LASIK, whereas SMILE induced more horizontal coma and vertical coma compared with WF-LASIK . Conclusion. FS-LASIK and LASIK induced comparable anterior corneal HOAs. Compared to LASIK and FS-LASIK, both SMILE and WF-LASIK showed advantages in inducing less total HOAs. In addition, SMILE also possesses better ability to reduce the induction of SA in comparison with LASIK and FS-LASIK. However, SMILE induced more horizontal coma and vertical coma compared with WF-LASIK, indicating that the centration of SMILE procedure is probably less precise than WF-LASIK.





Autor: Min-jie Ye, Cai-yuan Liu, Rong-feng Liao, Zheng-yu Gu, Bing-ying Zhao, and Yi Liao

Fuente: https://www.hindawi.com/



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