Autorefraction as an outcome measure of laser in situ keratomileusis

Journal of Cataract and Refractive Surgery
Konrad Pesudovs

Abstract

To determine the limits of agreement between subjective refraction and autorefraction before and after laser in situ keratomileusis (LASIK) to assess whether autorefraction is a valid refractive outcome measure of refractive surgery. Ultralase, Leeds, United Kingdom. The prospective study involved consecutive preoperative normal patients and post-LASIK patients who had autorefraction using the Nidek ARK 700A autorefractor and careful subjective refraction (masked to autorefraction). Inclusion criteria were age greater than 18 years and healthy eyes with a visual acuity better than 0.1 logMAR (6/7.5) with or without previous LASIK. Refractions were compared by spherical equivalent (SE) using Bland-Altman limits of agreement and astigmatic vector difference using the median and the 95th percentile. The effect of time after treatment and treatment strength were explored. Data were collected from 208 preoperative patients and 237 post-LASIK patients. Preoperatively, the agreement between subjective refraction and autorefraction for the SE was -0.10 diopter (D) +/- 0.35 (SD) and the median difference for the astigmatic vector was 0.28 D with a 95th percentile of 0.72 D. Post-LASIK, the SE agreement was similar, -0.09 +/- 0.39 D, but...Continue Reading

References

May 1, 1979·Ophthalmology·B Milder
Apr 1, 1995·Optometry and Vision Science : Official Publication of the American Academy of Optometry·T W Raasch
Jul 1, 1993·Journal of Cataract and Refractive Surgery·N A Alpins
Jan 1, 1997·Journal of Cataract and Refractive Surgery·N A Alpins
Sep 12, 1998·Optometry and Vision Science : Official Publication of the American Academy of Optometry·M A BullimoreC W Adams
Jun 22, 1999·Journal of Cataract and Refractive Surgery·D J SalchowA Parisi
Sep 29, 1999·Statistical Methods in Medical Research·J M Bland, D G Altman
Sep 29, 2000·Journal of Cataract and Refractive Surgery·C J Argento, M J Cosentino
Feb 13, 2001·Journal of Cataract and Refractive Surgery·N Alpins
Sep 21, 2001·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·T W RaaschUNKNOWN CLEK Study Group. Collaborative Longitudinal Evaluation of Keratoconus Study
Apr 30, 2002·Journal of Cataract and Refractive Surgery·Yoshiko Hori-KomaiKazuo Tsubota
Sep 17, 2002·Journal of Cataract and Refractive Surgery·Rosario Cobo-SorianoJulio Baviera
Sep 17, 2002·Journal of Cataract and Refractive Surgery·Chun Chen ChenDimitri T Azar
Sep 17, 2002·Journal of Cataract and Refractive Surgery·Thilo Schimitzek, Wolfgang Wesemann
Sep 17, 2002·Journal of Cataract and Refractive Surgery·S C K Wong, R Sampath
Dec 17, 2002·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Niall C StrangJohn R Pugh
Jan 29, 2003·Journal of Cataract and Refractive Surgery·Dimitrios S SiganosGeorgios Papastergiou

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Citations

Jul 2, 2011·Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·A FittingM P Holzer
Feb 3, 2011·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Irene SanchezIvan Fernandez-Bueno
Aug 29, 2012·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Suphi TaneriScott M MacRae
Mar 17, 2007·Eye·E A Gavin, C J Hammond
May 16, 2007·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Konrad PesudovsRaymond A Applegate
Dec 17, 2008·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Amy L SheppardLeon N Davies
Mar 4, 2014·Journal of Cataract and Refractive Surgery·Yishan QianEmily Olszewski
Oct 19, 2010·American Journal of Ophthalmology·Alireza MirshahiThomas Kohnen
Feb 3, 2009·Journal of Cataract and Refractive Surgery·Claudia E Perez-StraziotaR Doyle Stulting
Nov 26, 2015·Journal of Cataract and Refractive Surgery·Jin Hyoung ParkHungwon Tchah
Feb 14, 2006·Journal of Cataract and Refractive Surgery·Sandra M Brown
Feb 14, 2006·Journal of Cataract and Refractive Surgery·Charlotte E JoslinElmer Y Tu
Jan 31, 2016·Eye & Contact Lens·Waleed S Al-TuwairqiUchechukwu L Osuagwu

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