Vector Analysis of the Effects of FS-LASIK and Toric ICL for Moderate to High Astigmatism Correction

Journal of Ophthalmology
Kaijian ChenJian Ye

Abstract

To estimate the treatment effectiveness of femtosecond-assisted laser in situ keratomileusis (FS-LASIK) and Toric implantable collamer lens (Toric ICL) for moderate and high astigmatism via vector analysis. The study involved 44 eyes from 44 patients who had a preoperative refractive cylinder ≥1.0 diopters (D) and underwent bilateral FS-LASIK or Toric ICL surgery. The examinations included corrected distance visual acuity measurement and subjective refraction before and 3 months after surgery. The astigmatic changes were estimated using vector analysis. No statistically significant differences were found in cylindrical refraction and percentage of spherical equivalent within 0 D, ±0.50 D, ±1.00 D, and ±1.50 D between the FS-LASIK and Toric ICL groups at 3 months after surgery. The parameters of the vector analysis included intended refractive correction, surgically induced refractive correction, error vector, correction ratio, error ratio, error of magnitude, and error of angle, with no significant differences between the groups. However, error ratio the of the off-axis correction in the FS-LASIK and Toric ICL groups was 4.11 ± 3.02 and 8.11 ± 3.82, respectively, and the difference was significant (t = -2.46, p=0.02). Both FS-L...Continue Reading

References

Feb 11, 1998·Journal of Cataract and Refractive Surgery·N A Alpins
Jan 3, 2007·Ophthalmology·Donald R SandersSteven Schallhorn
Oct 12, 2012·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Esin Sogutlu SariYusuf Ozerturk
Aug 21, 2013·Ophthalmology·Ge WenUNKNOWN Multi-Ethnic Pediatric Eye Disease Study Group
Feb 27, 2014·Investigative Ophthalmology & Visual Science·Karim Mohamed-NoriegaJodhbir S Mehta
Jun 18, 2014·The Cochrane Database of Systematic Reviews·Allon Barsam, Bruce D S Allan
Dec 4, 2014·Journal of Cataract and Refractive Surgery·Jorge L AlióPablo Peña-García
Aug 20, 2016·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Youngsub EomHyo Myung Kim
Sep 1, 2016·Journal of Current Ophthalmology·Mehrdad MohammadpourMehdi Khabazkhoob

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Citations

Mar 6, 2021·European Journal of Ophthalmology·Antonio Cano-OrtizAlberto Villarrubia

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Software Mentioned

SMILE
SPSS
FS
LASIK
PASW

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