Decentration of optical zone center and its impact on visual outcomes following SMILE

Cornea
Manli LiuQuan Liu

Abstract

To evaluate decentration from pupil center and corneal vertex normal following femtosecond laser small incision lenticule extraction (SMILE) for the treatment of myopia and myopic astigmatism. This study evaluated 101 eyes of 101 patients with a spherical equivalent (SE) of -5.30 ± 1.72 diopters (D). Decentration was measured in the pupil-centered group (PC group) by video capture images and in the vertex normal-centered group (VNC group) using the WaveLight Oculyzer II (Alcon). The PC and VNC groups were further divided into 4 subgroups (1 PC, 2 PC and 1 VNC, 2 VNC) based on the displacement of the lenticule center. Uncorrected and corrected distance visual acuities, manifest refraction, and wavefront errors were measured preoperatively, and at 1 day, 1 week, 1 month, and 3 and 6 months postoperatively. Regarding efficacy and safety, at 6 months postoperatively, 65, 71, 83, and 53% of eyes had unchanged corrected distance visual acuity in 1 PC, 1 VNC, 2 PC and 2 VNC groups, respectively. Also, 97, 98, 100, and 97% of treated eyes had a postoperative uncorrected distance visual acuity 20/20 or better in the subgroups, respectively. In the groups mentioned above, 96, 100, 100, and 95% of eyes, respectively, were within ±0.5 D of...Continue Reading

References

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Citations

Nov 29, 2015·Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·T Kohnen, M Remy
Aug 1, 2015·Cornea·Arturo Ramirez-MirandaEnrique O Graue-Hernandez
Jul 13, 2018·Journal of Refractive Surgery·Gernot SteinwenderAndreas Wedrich
Mar 28, 2017·Eye & Contact Lens·Guihua LiuRuihua Wei
Oct 29, 2018·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Tommy C Y ChanYan Wang
Apr 12, 2017·Journal of Ophthalmology·Ying YuHui Chen
Jun 23, 2020·Journal of Cataract and Refractive Surgery·Jia-Hao ZhangYan Zhang
Jul 25, 2017·Journal of Cataract and Refractive Surgery·Yan WangPinghui Wei
Oct 1, 2019·Asia-Pacific Journal of Ophthalmology·Harsha NagarajaDennis S C Lam
Sep 7, 2019·Asia-Pacific Journal of Ophthalmology·Sharon S W ChowTommy C Y Chan
Oct 1, 2019·Asia-Pacific Journal of Ophthalmology·Quan LiuDennis S C Lam

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