Clinical Outcomes of Z-LASIK for Myopia in Ocular Wavefront Customized Ablations

Saturday, April 26, 2014: 3:06 PM
Room 152 (Boston Convention and Exhibition Center)
Maria C. Arbelaez, MD, Muscat Eye Laser Center, Muscat, Oman
Samuel Arba Mosquera, PhD, SCHWIND eye-tech-solutions, Kleinostheim, Germany

Narrative Responses:

Purpose
Evaluation of aspheric customized Z-LASIK treatments with AMARIS using Ocular Wavefront Customized Ablations.

Methods
The last twenty-five patients (50 eyes) treated for myopia up to -6D and astigmatism up to 3D using Z-LASIK and AMARIS ocular WFG ablations (based on irx3 H-S aberrometer) have been reviewed at 6-month follow-up. Clinical outcomes were evaluated in terms of predictability, refractive outcome, safety, wavefront aberration, and contrast sensitivity.

Results
6-month postoperatively, mean residual defocus was +0.14±0.40 D and mean residual astigmatism magnitude 0.50±0.27 D.  Thirty-six percent eyes were within ±0.25 D of emmetropia and 92% within ±0.75 D.  The achieved refractive changes (in defocus, and cardinal and oblique astigmatisms) were significantly correlated with intended corrections, the regression slopes were very close to the ideal corrections.

Conclusion
6 months post-op results prove the predictability and stability of the correction by OW customisations.  Ocular WFG treatments with AMARIS based on Hartmann-Schack aberrometry provide excellent aberration correction.