Repeatability of measurements with a double-pass system

Journal of Cataract and Refractive Surgery
Alain SaadDamien Gatinel

Abstract

To evaluate the repeatability of measurements with a double-pass system. Rothschild Foundation, Paris, France. Eyes were separated into 2 control groups (<30 years old and >40 years), a post-refractive surgery group, and a cataract group. Measurements were performed using the Optical Quality Analysis System. The main outcome measures were the objective scattering index (OSI), the cutoff frequency of the modulation transfer function (MTF), and the Strehl ratio. The repeatability limit was obtained from the individual standard deviations. Forty-two eyes were evaluated. The mean OSI value was 0.47 +/- 0.11 (SD) in the younger control group, 1.73 +/- 0.26 in the older control group, 1.34 +/- 0.16 in the post-refractive surgery group, and 6.15 +/- 0.50 in the cataract group. The mean cutoff MTF value was 39.44 +/- 3.93 cycles per degree (cpd), 26.07 +/- 3.89 cpd, 28.34 +/- 2.84 cpd, and 13.3 +/- 1.69 cpd, respectively, and the mean Strehl ratio, 0.234 +/- 0.023, 0.146 +/- 0.021, 0.169 +/- 0.023, and 0.098 +/- 0.010, respectively. The repeatability limit for the whole population was 0.841 (33.5%) for the OSI, 8.499 (31.1%) for the cutoff MTF, and 0.051 (31%) for the Strehl ratio. The repeatability limit was good and equivalent for th...Continue Reading

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Citations

Jun 29, 2010·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Meritxell VilasecaMontserrat Arjona
Nov 4, 2010·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Thomas J T P van den Berg
Feb 5, 2014·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Hun LeeTae-Im Kim
Jul 19, 2013·BioMed Research International·Hidenaga KobashiKimiya Shimizu
Jun 21, 2014·Journal of Ophthalmology·José J CastroLuis Jiménez Del Barco
Jul 26, 2014·Journal français d'ophtalmologie·V Rzemyk, B Cochener
May 31, 2014·Journal of Cataract and Refractive Surgery·Simone BeheregarayTetsuro Oshika
Feb 10, 2016·Journal of Refractive Surgery·Florence GalliotBéatrice Cochener
Apr 9, 2016·Journal of Ophthalmology·Chang Won ParkChoun-Ki Joo
May 26, 2012·Journal of Cataract and Refractive Surgery·Mathew KurianBhujang K Shetty
Sep 13, 2011·Journal français d'ophtalmologie·Y NochezP-J Pisella
Jul 15, 2011·Journal of Cataract and Refractive Surgery·Aixa AlarcónRamón Gutierrez
May 21, 2011·Journal of Cataract and Refractive Surgery·Yannick NochezPierre-Jean Pisella
Oct 30, 2010·Journal of Cataract and Refractive Surgery·Meritxell VilasecaJaume Pujol
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May 17, 2012·Current Eye Research·Kazutaka KamiyaHiroshi Uozato
Mar 31, 2016·Journal of Refractive Surgery·Emmanuel GuilbertDamien Gatinel
Jun 14, 2016·Journal of Ophthalmology·Yu-Jing WangJiang-Bo Yan
Aug 6, 2016·Journal of Cataract and Refractive Surgery·Raimundo JiménezJosé R Jiménez
Oct 27, 2016·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Joan A Martínez-RodaJaume Pujol
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