title: Comparison of the Optical Quality between Small Incision Lenticule Extraction and Femtosecond Laser LASIK.
abstract: Purpose.To investigate the visual quality after SMILE and Femto-LASIK.Methods.About 123 eyes from 63 patients were enrolled in this study. The parameters were measured preoperatively and 1 week, 1 month, and 3 months postoperatively using Sirius System.Results.The MTF curve increase slightly from low to high frequency at 3 mm and 6 mm pupil diameter after SMILE surgery (P< 0.05) during the follow-up time comparing with the preoperative values. And the SR has a significant increase at various pupil diameters as well (P< 0.05). However, there was little increase for MTF at intermediate to high frequency at 3 mm pupil diameter after Femto-LASIK procedure (P< 0.05). And the SR had only significant increase at 3 mm pupil diameter. Between SMILE and Femto-LASIK, there was no statistic difference both in MTF and SR (P> 0.05) at 3 mm pupil diameter at vertical and horizontal meridian. However, significant difference was found in MTF at low to mediate frequency at 6 mm pupil diameter at vertical meridian at 1 week postoperatively (P< 0.05).Conclusions.Both SMILE and Femto-LASIK show a great improvement in optical quality at small diameter. It was found that SMILE shows better optical quality than Femto-LASIK at larger pupil diameter, which might be good for the night vision.
authors.affiliation: Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Medical University and Nankai University, Tianjin 300020, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Jin
authors.affiliation: Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Medical University and Nankai University, Tianjin 300020, China.
authors.forename: Yan
authors.identifier: 0000-0002-1257-6635
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Medical University and Nankai University, Tianjin 300020, China.
authors.forename: Lulu
authors.identifier: 0000-0002-5124-6647
authors.initials: L
authors.lastname: Xu
authors.affiliation: Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Medical University and Nankai University, Tianjin 300020, China.
authors.forename: Tong
authors.initials: T
authors.lastname: Zuo
authors.affiliation: Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Medical University and Nankai University, Tianjin 300020, China.
authors.forename: Hua
authors.initials: H
authors.lastname: Li
authors.affiliation: Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Medical University and Nankai University, Tianjin 300020, China.
authors.forename: Rui
authors.identifier: 0000-0002-1678-735X
authors.initials: R
authors.lastname: Dou
authors.affiliation: Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Medical University and Nankai University, Tianjin 300020, China.
authors.forename: Jiamei
authors.identifier: 0000-0002-0695-2008
authors.initials: J
authors.lastname: Zhang