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Contrast sensitivity outcomes with the wavelight refractive suite (Excimer EX500 and Femtosecond FS200 lasers)

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Session Details

Session Title: Photoablation Outcomes I

Session Date/Time: Monday 07/09/2015 | 16:30-18:30

Paper Time: 16:48

Venue: Room 17

First Author: : M.Maus GERMANY

Co Author(s): :    A. Cummings   D. Durrie   M. Gordon   R. Williams   J. Gow        

Abstract Details


To evaluate contrast sensitivity after LASIK treatment for myopia using the WaveLight Refractive Suite


Prospective, post-market, and open label trial at 4 sites, 2 sites each in US and Europe. 1. Durrie Vision, Overland Park KS, USA 2. Gordon-Weiss-Schanzlin Vision Institute, San Diego CA, USA 3. Wellington Eye Clinic, Dublin, Ireland 4. Sehkraft Augenzentrum Maus, Cologne, Germany


Myopic subjects 18 years of age or older underwent LASIK treatment with the WaveLight Refractive Suite. Subjects completed visits preoperatively and at 1 day, 1 month, 3 months, and 6 months postoperatively. Contrast sensitivity was assessed at all postoperative visits. Binocular best corrected contrast sensitivity was measured with the manifest refraction at 8 feet, with the room lights on and the chart luminance greater than 85 cd/m2. Contrast sensitivity was tested at 3 cpd, 6 cpd, 12 cpd and 18 cpd.


Ninety-seven subjects underwent LASIK treatment and 96 subjects were included in the full analysis set. The mean spherical equivalent at baseline was -3.67 D ±1.98 D. At baseline, binocular contrast sensitivity in log CS was 1.808 ± 0.140 at 3 cpd, 2.020 ± 0.188 at 6 cpd, 1.739 ± 0.209 at 12 cpd and 1.281 ± 0.201 at 18 cpd. At 6 months, binocular contrast sensitivity was 1.917 ± 0.133 at 3 cpd, 2.148 ± 0.126 at 6 cpd, 1.876± 0.144 at 12 cpd and 1.432 ± 0.130 at 18 cpd.


Subjects' contrast sensitivity was improved at 6 months after LASIK treatment for myopia with the WaveLight Refractive Suite compared to baseline.

Financial Interest:

One of the authors is employed by a for-profit company with an interest in the subject of the presentation, One of the authors receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented

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