Comparison of higher-order aberration induction between manual microkeratome and femtosecond laser flap creation

Journal of Refractive Surgery
Camille YvonDan Z Reinstein

Abstract

To compare the mean change in aberrations produced by a mechanical microkeratome and femtosecond laser. This was a retrospective study of 62 consecutive near emmetropic eyes that underwent LASIK and satisfied the following criteria: negligible laser ablation (for spherical equivalent of 0.00 to +0.50 diopters and maximum meridian of +0.50 diopters), and preoperative and at least 3 months postoperative Placido-based corneal aberrometry (ATLAS; Carl Zeiss Meditec, Jena, Germany). Eyes were divided into two groups according to the method used for flap creation: mechanical microkeratome (Hansatome zero-compression microkeratome; Bausch & Lomb, Rochester, NY [mechanical microkeratome group]) or femtosecond laser (VisuMax; Carl Zeiss Meditec, Jena, Germany [femtosecond laser group]). The root mean square total and individual higher-order aberrations were compared between the two groups. Corneas with mechanical flaps, on average, possessed statistically significantly higher trefoil and horizontal coma (P < .001). There was no change in higher-order aberrations, except for spherical aberration in the femtosecond laser group. Average change in coma did not correlate with hinge position. Both groups showed statistically significant chang...Continue Reading

References

Oct 22, 2002·Journal of Cataract and Refractive Surgery·Ioannis G PallikarisAristofanis I Pallikaris
Jul 31, 2003·American Journal of Ophthalmology·Jason PorterDavid R Williams
Feb 18, 2004·Journal of Cataract and Refractive Surgery·Perry S Binder
Apr 20, 2004·Journal of Cataract and Refractive Surgery·Guy M Kezirian, Karl G Stonecipher
Nov 13, 2008·Archives of Ophthalmology·Annie ChanEdward E Manche
Dec 23, 2008·Journal of Cataract and Refractive Surgery·Burkhard von Jagow, Thomas Kohnen
May 13, 2009·Journal of Refractive Surgery·Marcus BlumWalter Sekundo
Mar 23, 2011·Journal of Cataract and Refractive Surgery·Ammar Issa, Usama Al Hassany
Mar 1, 2012·Journal of Refractive Surgery·Yuehua ZhouChangbin Zhai
Oct 31, 2013·Journal of Refractive Surgery·Dan Z ReinsteinMarine Gobbe

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Citations

Mar 6, 2018·Journal of Cataract and Refractive Surgery·Montserrat Garcia-GonzalezMiguel A Teus
Jul 4, 2020·Journal of Cataract and Refractive Surgery·Alberto Parafita-FernandezMiguel Teus
Mar 5, 2016·International Ophthalmology Clinics·Brad E KligmanWilliam J Dupps
May 18, 2016·Asia-Pacific Journal of Ophthalmology·Angelique Pillar, Ronald Krueger
Mar 4, 2020·Journal of Cataract and Refractive Surgery·Alberto Parafita-FernandezMiguel Teus
Apr 1, 2016·Current Opinion in Ophthalmology·Lisa Y Chen, Edward E Manche
Dec 14, 2016·Journal of Cataract and Refractive Surgery·Yosai MoriKazunori Miyata
Sep 9, 2020·Journal of Cataract and Refractive Surgery·Alberto Parafita-FernandezMiguel Teus
Aug 10, 2021·International Ophthalmology·Rafael Cañones-ZafraMiguel A Teus

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