Thickness Of Retinal Nerve Fiber Layer And Macular Retina After Femtosecond Laser In Situ Keratomileusis (FS-LASIK)

Objective To study the change of retinal nerve fiber layer and retinal thickness of macular zone after femtosecond laser-assisted laser in situ karatomileusis(FS-LASIK).Methods This is prospective,consecutive study.Fifty-eight patients(116 eyes)with myopia undergoing FS-LASIK surgery at Ningxia Eye Hospital from January to March 2017 were selected randomly for detailed eye examinations,including uncorrected visual acuity(UCVA),best corrected visual acuity(BCVA),intraocular pressure(IOP),optometry,slit lamp examination,corneal topography,tear secretion test,three-mirror contact lens fundus examination and fundus photography were performed,in addition,Zeiss Cirrus High Definition-optical coherence tomography(HD-OCT)was used to collect relevant data on macular retinal thickness and RNFL thickness preoperative and on 1d,1w,1m,3m postoperative.The datas were analyzed using SPSS 23.0 software and compared by independent samples t-test.Results After three months,the ratio of uncorrected visual acuity reached to preoperative level was 100% 。 There were no statistically significant difference between preoperatively and the time points postoperatively both in the area of retinal thickness of macular and RNFL thickness(P>0.05).Conclusion1.FS-LASIK after surgery to make patients get better uncorrected visual acuity,good stability.2.FS-LASIK has no significant effect on RNFL and macular retinal thickness determinedby HD-OCT.