Photorefractive keratectomy with aspheric profile of ablation versus conventional photorefractive keratectomy for myopia correction: six-month controlled clinical trial

Journal of Cataract and Refractive Surgery
Leonardo MastropasquaEnzo Ballone

Abstract

To analyze ocular wavefront error and corneal asphericity (Q) in patients treated with aspheric profile photorefractive keratectomy (PRK) compared with patients having conventional PRK to correct myopia and myopic astigmatism and to evaluate the effect of postoperative corneal shape on visual performance. Eye Clinic, University G. d'Annunzio, Chieti-Pescara, Italy. Fifty eyes were treated with aspheric profile PRK using the MEL 80 flying-spot excimer laser, and 24 eyes were treated with standard PRK using the MEL 70 flying-spot excimer laser. Postoperative wavefront error increased in both groups. Six months after surgery, there was a smaller increase in root mean square (RMS) of total higher-order aberrations and spherical aberration (59% and 106%, respectively) in the aspheric profile PRK group than in the conventional PRK group (94% and 136%, respectively) (P<.01). The aspheric profile PRK group showed more prolate corneal asphericities (mean Q of 0.15 +/- 0.26) than the conventional group (mean Q of 0.45 +/- 0.26) (P<.001), with increasing oblateness for higher attempted corrections. A higher percentage of patients with better low-contrast uncorrected visual acuity and best corrected visual acuity was observed in the aspher...Continue Reading

References

Jan 1, 1988·Journal of Cataract and Refractive Surgery·C R MunnerlynJ Marshall
Mar 1, 1994·Journal of Cataract and Refractive Surgery·H R TaylorN Alpins
Dec 1, 1996·Archives of Ophthalmology·W VerdonR K Maloney
Aug 26, 1998·Archives of Ophthalmology·C E MartínezH C Howland
Sep 8, 1998·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·J Schwiegerling, R W Snyder
Sep 8, 1998·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·S A Klein
Feb 23, 2000·Journal of Cataract and Refractive Surgery·J Schwiegerling, R W Snyder
Apr 30, 2002·Journal of Cataract and Refractive Surgery·Fabrice MannsWilliam Culbertson
Aug 8, 2002·Current Opinion in Ophthalmology·Theo Seiler, Mohammad H Dastjerdi
Oct 22, 2002·Journal of Cataract and Refractive Surgery·Ioannis G PallikarisAristofanis I Pallikaris
Nov 30, 2002·Journal of Cataract and Refractive Surgery·Rudy M M A NuijtsFred A G J Eggink
Apr 20, 2004·Journal of Cataract and Refractive Surgery·Michael MrochenJoachim Löffler

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Citations

Mar 4, 2008·Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·Th NeuhannJ M Hassel
Sep 1, 2006·Photomedicine and Laser Surgery
Jul 16, 2009·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Maria Clara ArbelaezSamuel Arba-Mosquera
Aug 20, 2009·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Samuel Arba-Mosquera, Diego de Ortueta
May 28, 2011·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Antonio BenitoPablo Artal
Feb 10, 2010·Middle East African Journal of Ophthalmology·Maria Clara Arbelaez, Samuel Arba Mosquera
Jan 10, 2012·Journal français d'ophtalmologie·D SmadjaJ Colin
Sep 29, 2009·Journal of Cataract and Refractive Surgery·Maria Clara ArbelaezSamuel Arba-Mosquera
Jul 28, 2009·Journal of Cataract and Refractive Surgery·Robert Edward T AngIan Cox
Nov 20, 2009·Journal of Refractive Surgery·Maria Clara ArbelaezSamuel Arba Mosquera
May 4, 2011·Ophthalmic Surgery, Lasers & Imaging : the Official Journal of the International Society for Imaging in the Eye·Hatem E El AwadySameh M Saleh
Mar 1, 2012·Journal of Refractive Surgery·David SmadjaRonald R Krueger
Sep 16, 2010·Journal of Refractive Surgery·Mohammad MiraftabHassan Hashemi
Dec 17, 2009·Journal of Refractive Surgery·Maria Clara ArbelaezSamuel Arba Mosquera
Mar 9, 2010·Journal of Refractive Surgery·Diego de Ortueta, Samuel Arba Mosquera
Feb 18, 2011·Journal of Refractive Surgery·Samuel Arba Mosquera, Maria C Arbelaez
Feb 27, 2008·Journal of Cataract and Refractive Surgery·Prema PadmanabhanRoy Joseph
Feb 5, 2008·Journal of Cataract and Refractive Surgery·Jorge L AlióAna Belén Plaza Puche
Nov 6, 2007·American Journal of Ophthalmology·Jorge L AlióOrkun Muftuoglu
Dec 4, 2014·Journal of Cataract and Refractive Surgery·Zaid ShalchiJohn Marshall
Jul 5, 2008·Ophthalmology·Steven C SchallhornUNKNOWN American Academy of Ophthalmology
Sep 25, 2020·PloS One·Joshua MooreAhmed Abass
Feb 27, 2008·Journal of Refractive Surgery·Diego de OrtuetaHolger Baatz
Feb 27, 2009·Journal of Refractive Surgery·Diego de OrtuetaHolger Baatz
Jun 15, 2007·Current Opinion in Ophthalmology

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