J Otolaryngol Ophthalmol Shandong Univ ›› 2013, Vol. 27 ›› Issue (4): 21-25.doi: 10.6040/j.issn.1673-3770.0.2013.163

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Obversation of cornea flaps′ characters created by Wavelight FS200 and Moria M2 110

ZHAI Chang-bin1, HAO Ying-juan2, YI Sheng-ping2, YANG Qing-song1, ZHANG Jing1, ZHOU Yue-hua1   

  1. 1. Beijing Tongren Eye Center, Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China; 2. Department of Ophthalmology, Nanjing Tongren Hospital, Nangjing 211100, China
  • Received:2013-05-29 Published:2013-08-16

Abstract:

Objective    To compare the features of corneal flaps created using the FS200 and Moria M2 microkeratome 110μm-knife. Methods    A pilot and prospective study was designed. Ninety eyes of forty five patients were enrolled in this clinical trial. The patients were divided into the FS200 group (50 eyes) and the M2 microkeratome 110μm-knife group (40 eyes) with matching demography. Fourier-domain optical coherence tomography (RTVue OCT) was used to measure flap thickness by 10 settings on 90 corneas at one month post-operatively. The features of the laser in situ keratomileusis (LASIK) flaps were analyzed on the basis of the outcomes. Written informed consent was obtained from each patient prior to LASIK. Results    The mean flap thickness of the FS200 group was considerably thinner than that of the Moria 110 group (112.2±3.2μm versus 151.1±14.9μm), and the same result could be found in the variable range of the two groups (18.3±4.1 of the FS200 versus 42.6±14.5 of the M110) simultaneously.  The corneal flaps in the FS200 groups showed a flat shape and in the Moria 110 group showed a meniscus shape. The central flap thickness of the FS200 group was not evidently different from that of peripheral(P>0.05), but in the Moria 110 group, the central flap thickness was obviously thinner than the peripheral thickness (P<0.05).  Conclusion    The shape of flaps created using the FS200 is more uniform and closer to the expected thickness of 110μm than the ones created using the Moria M2 110 microkeratome.

CLC Number: 

  • R779.63
[1] ZHANG Qiu-lu, WANG Yong-hua, LI Ying, WANG Yue, LIU Jing, HU Ya-bin, XU Wen, ZHENG Yan, LIU Qian, ZHAI Chang-bin. Evaluation of corneal flaps made by femtosecond laser Ziemer FEMTO LDV “Classic” and “Crystal Line LASIK” [J]. JOURNAL OF SHANDONG UNIVERSITY (OTOLARYNGOLOGY AND OPHTHALMOLOGY), 2014, 28(3): 75-79.
[2] JI Peng, BI Hongsheng, WANG Xingrong, MA Xiaohua, LI Haiyan,WANG Baojing, WANG Guimin, FAN Hua. Comparison of wave-front aberration changes in  iris-recognition combined with wavefront-guided LASIK and Planoscan-LASIK [J]. JOURNAL OF SHANDONG UNIVERSITY (OTOLARYNGOLOGY AND OPHTHALMOLOGY), 2010, 24(01): 57-60.
[3] HAO Ying-juan1, YANG Qing-song2, ZHOU Yue-hua2, YI Sheng-ping1, ZHAI Chang-bin2. Characteristics of thin corneal flaps created with Wavelight FS200 femtosecond laser [J]. J Otolaryngol Ophthalmol Shandong Univ, 2013, 27(4): 26-31.
[4] CAO Guang-yi, XUE Jin-song. Characteristic analysis of corneal flap made by Ziemer FEMTO LDV femtosecond laser [J]. J Otolaryngol Ophthalmol Shandong Univ, 2013, 27(4): 36-39.
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