Wavefront-guided and aspheric ablation for myopia -- one-year results of the zyoptix personalized treatment advanced algorithm

American Journal of Ophthalmology
Andrea Ryan, Michael O'Keefe

Abstract

To evaluate the visual outcome and change in higher-order aberrations (HOAs) 1 year post simultaneous wavefront-guided and aspheric photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK). Prospective interventional case series. Consecutive myopic patients undergoing PRK (38 eyes of 23 patients) and LASIK (42 eyes of 25 patients) using the Technolas 217z100 excimer laser (Technolas Perfect Vision) in a private laser clinic were included. Main outcome measures were uncorrected distance visual acuity (UDVA), manifest refraction (MRSE), HOAs, and spherical aberration (Z(4)(0)). At 1 year, 87% (32/37) of PRK eyes and 81% (30/37) of LASIK eyes had UDVA of 20/20 or better (P = .75). Mean ± SD MRSE was -0.26 ± 0.31 diopters (D) in the PRK and -0.16 ± 0.34 D in the LASIK group (P = .222). There was no significant increase in total HOA root mean square (RMS) in the PRK group. Mean ± SD total HOA RMS increased from 0.402 ± 0.14 μm to 0.496 ± 0.17 μm (P = .013) in the LASIK group at 1 year. Z(4)(0) increased from mean ± SD -0.045 ± 0.12 μm to -0.109 ± 0.15 μm (P = .006, factor 2.42) in the PRK group and did not significantly increase in the LASIK group (mean ± SD -0.16 ± 0.17 μm to -0.17 ± 0.15 μm (P = .469, factor 1.08...Continue Reading

References

Feb 28, 2001·Journal of Cataract and Refractive Surgery·M MrochenT Seiler
Oct 22, 2002·Journal of Cataract and Refractive Surgery·Ioannis G PallikarisAristofanis I Pallikaris
Oct 27, 2004·Investigative Ophthalmology & Visual Science·Nayori YamaneTetsuro Oshika
Jan 1, 2008·Journal of Cataract and Refractive Surgery·Simon R BababeygyEdward E Manche
Jun 12, 2008·Current Opinion in Ophthalmology·Alisa Kim, Roy S Chuck
Jul 29, 2008·Journal of Cataract and Refractive Surgery·Vicente Fernández-SánchezNorberto López-Gil
Jul 28, 2009·Journal of Cataract and Refractive Surgery·Robert Edward T AngIan Cox
Apr 7, 2010·Journal of Cataract and Refractive Surgery·Farid KarimianMohammad Reza Jafarinasab

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Citations

Aug 21, 2012·American Journal of Ophthalmology·Alberto López-MiguelJuan Carlos Nieto
Sep 10, 2015·Journal of Refractive Surgery·Gaurav PrakashMuhammad Suhail
Jan 18, 2018·Journal of Cataract and Refractive Surgery·Amir FaramarziBahareh Kheiri
Oct 30, 2016·European Journal of Ophthalmology·Sarah MoussaJosef Ruckhofer

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