Comparion of early postoperative visual quality between SMILE and WG-FS-LASIK in treating patients with low myopia without astigmatism
KONG Min
LUO Wuqiang
LI Lili
XIAO Xin
CHEN Qi
LIN Enwei
LIN Hong
GAN Yu
Abstract：Objective To compare the early postoperative visual quality between femtosecond laser small inci-sion lenticule extraction(SMILE)and wavefront aberration guided laser in situ keratomileusis(WG-FS-LASIK)in patients with low myopia without astigmatism.Methods Fifteen patients(30 eyes,SMILE group)undergoing SMILE treatment and 15 patients(30 eyes,WG-FS-LASIK group)undergoing WG-FS-LASIK treatment in the Optometry Center of the People's Hospital of Guangxi Zhuang Autonomous Region from March 2022 to June 2022 were selected.All the patients had no astigmatism before surgery and their best corrected visual acuities requiring for the minimum spherical lens power were less than or equal to-3.00 D.Visual acuity,total aberrations(coma,trefoil and spherical aberration),objective scatter index(OSI),modulation transfer function cut-off frequency(MTFcut-off),Streeler ratio(SR),and predictable visual acuity(PVA)(including PVA 100％,PVA 20％and PVA 9％)were measured before surgery,and 1 day,1 week,and 1 month after surgery.The measurement results of the observation indicators were compared between the two groups.Results The equivalent spherical lens and visual acuities were significantly improved in the two groups after surgery compared with those before surgery(P＜0.05),but there was no significant difference at each time point between the two groups(P＞0.05).The OSI,SR and PVA 9％were improved in both groups after surgery compared with those before surgery(P＜0.05).The OSI levels in the WG-FS-LASIK group were significantly decreased 1 day,1 week and 1 month after surgery compared with those in the SMILE group(P＜0.05).One month after surgery,PVA 9％in the WG-FS-LASIK group was significantly higher than that in the SMILE group(P＜0.05).The postoperative coma differ-ences in the SMILE group and the WG-FS-LASIK group showed a trend of increasing first and then decreasing,but the changing range of the WG-FS-LASIK group was smaller.The postoperative coma differences in the WG-FS-LASIK group were less than those in the SMILE group 1 day,1 week and 1 month after surgery,and the differences were statistically significant(P＜0.05).Conclusion Both SMILE and WG-FS-LASIK can improve early postoperative visual quality in patients with low myopia without astigmatism,but the patients undergoing WG-FS-LASIK treatment have better early visual recovery and better nighttime visual quality improvement.
Keywords：Femtosecond laser small incision lenticule extraction(SMILE)Wavefront aberration guided laser in situ keratomileusis(WG-FS-LASIK)Low myopia without astigmatismVisual quality
Publication Date：2024-02-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 200-205 )