Comparison of the Distribution of Lenticule Decentration Following SMILE by Subjective Patient Fixation or Triple Marking Centration

Journal of Refractive Surgery
David Sung Yong KangTae-Im Kim

Abstract

To investigate lenticule decentration following small incision lenticule extraction (SMILE) via the subjective patient fixation method or triple marking centration method and compare inductions of corneal higher order aberrations (HOAs) between the two methods. This study analyzed decentration values obtained from the Keratron Scout (Optikon, Rome, Italy) tangential topography difference map of 110 eyes (110 patients) undergoing SMILE with the subjective patient fixation method (n = 55) or triple marking centration method (n = 55). Root mean square values of total HOAs, 3rd order coma aberration, and 4th order spherical aberration, as well as individual coefficients for vertical and horizontal coma, were measured preoperatively and 3 months postoperatively. Relationships between the magnitudes of decentration and induced corneal HOAs were assessed. There were significant differences in horizontal decentered displacement (P = .048), vertical decentered displacement (P = .002), and total decentered displacement (P = .001) between the two groups. Total HOAs, coma, vertical coma, and spherical aberration significantly increased in the subjective patient fixation method (all P < .001), whereas total HOAs (P = .002) and vertical coma...Continue Reading

References

Mar 20, 2001·Journal of Cataract and Refractive Surgery·M MrochenT Seiler
Apr 5, 2002·American Journal of Ophthalmology·Anil U SwamiApril A White
Mar 22, 2003·Journal of Cataract and Refractive Surgery·Michael BueelerTheo Seiler
Jul 29, 2008·Investigative Ophthalmology & Visual Science·Maria Clara ArbelaezSamuel Arba-Mosquera
Dec 25, 2010·Journal of Cataract and Refractive Surgery·Rupal ShahSayantan Sengupta
Sep 18, 2012·Journal of Cataract and Refractive Surgery·Anders VestergaardJesper Ø Hjortdal
Mar 4, 2015·Journal of Refractive Surgery·Cynthia J Roberts

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Citations

Feb 5, 2019·Journal of Cataract and Refractive Surgery·Andre L PiccininiJ Bradley Randleman
Nov 25, 2020·Indian Journal of Ophthalmology·Mohamed Ibrahime AsifNamrata Sharma
May 29, 2021·Journal of Refractive Surgery·Kishore Raj Pradhan, Samuel Arba-Mosquera

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Software Mentioned

PowerPoint
SPSS
Keratron Scout
Power
SMILE

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