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Visual, refractive and aberrometric outcomes after 3 years of LASIK for the correction of high myopia

Poster Details

First Author: A. Vega Estrada SPAIN

Co Author(s):    P. Sanz-Diez   J. Alio                 

Abstract Details

Purpose:

To evaluate the long-term outcomes of laser in situ keratomileusis (LASIK) for the correction of high myopia using a 500 Hz repetition rate excimer laser and optimized aspherical profile.

Setting:

Vissum Corporation, Alicante, Spain

Methods:

Retrospective consecutive noncomparative study evaluating 70 eyes of 40 patients with ages ranging from 24 to 56 years (mean age of 35.67±8.44 years) that underwent uneventful primary LASIK surgery. LASIK procedures were performed using the Amaris excimer laser (Schwind Eye-Tech-Solutions, Kleinostheim, Germany). All treatments performed for patients included in the current series were based on optimized aspherical ablation profile. Visual, refractive, topographic and corneal aberrometric changes were evaluated during a follow up period of 3 years.

Results:

A significant improvement of about 15 LogMAR lines was observed in uncorrected vision at 3 months and 3 years after surgery (p<0.01), with no significant changes during the follow-up. This improvement was consistent with a significant reduction of spherical equivalent that came from preoperative -7.79 ± 1.38 diopters (D) to 3 years postoperative -0.29 ± 0.54 D (p<0.01). Mean safety and efficacy indexes were 1.02 and 0.90 at 3 years, respectively. Significant induction of primary spherical aberration and coma was also found (p<0.01), at 3 years with levels of -0.41 ± 0.52 µm and 0.53 ± 0.31 µm, respectively.

Conclusions:

LASIK for the correction of high levels of myopia using optimized aspherical profiles and the Amaris excimer laser is a safe, effective and predictable procedure with stable results after long period of follow up.

Financial Disclosure:

NONE

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