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Comparative of Clinical and Patient Reported Outcomes for Different Wavefront Guided Ablation Technologies

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First Author: D.Teenan UK

Co Author(s):    J. Venter   S. Hannan                 

Abstract Details

Purpose:

To compare outcomes of iDesign 2.0, a new wavefront guided methodology, with previously released versions in a comparative population and setting.

Setting:

Private Refractive Surgery (Optical Express)

Methods:

Patients underwent bilateral LASIK procedures using one of 3 ablation technologies: Wavefront CustomVue, iDesign 1.2 or iDesign 2.0. A Simple Random Sample of 500 patients per cohort was extracted. Treatments carried out in the first year of respective technology implementation were included. Manifest refraction and monocular and binocular UCDVA were recorded 1 day, 1 week, 1 month and 3 months postoperatively. Patient questionnaire included domains for satisfaction, dry eye difficulty, and visual phenomena. Complications were recorded in the electronic medical record at any point in time.

Results:

Preop refraction was to -11.00D of myopia & to -5.00D of astigmatism. In early postop, iDesign 2.0 exhibited a mean shift in sphere towards hyperopia of approximately 0.25D. By 1 month postop this shift was absent, and iDesign 2.0 had statistically significant higher UCDVA levels with 99.4% of patients reaching binocular UCDVA of 20/20 or better and 100% 20/25 or better. This trend was maintained at 3 months. Loss of >2 lines BCDVA occurred in <0.2% with no statistical differences. The 3 cohorts had high levels of satisfaction, with iDesign 2.0 highest at 96.4% of patients “very satisfied” or “satisfied”.

Conclusions:

The 3 cohorts provide safe and effective wavefront guided treatments. A difference in the iDesign 2.0 healing pattern in early postop phase was noted. Percent of patients reaching 20/20 was higher for iDesign 2.0 at 1 and 3 month postop visit. Patient reported satisfaction was also higher in with iDesign 2.0.

Financial Disclosure:

... is employed by a for-profit company with an interest in the subject of the presentation