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Session Title: LASIK
Session Date/Time: Wednesday 09/10/2013 | 08:00-10:30
Paper Time: 09:26
Venue: Auditorium (First Floor)
First Author: : J.Ruckhofer AUSTRIA
Co Author(s): : A. Dexl S. Moussa G. Grabner
The aim of this prospective non-comparative study was to investigate the efficacy, predictability and stability of the CustomVue procedure using the new iDesign aberrometer (Abbott Medical Optics, Santa Ana, California) for treatment planning
University Eye Clinic, Paracelsus Medical University, Salzburg, Austria
This prospective non-comparative study included a total of 100 consecutive eyes with myopic astigmatism of 56 patients undergoing Wavefront Guided (WFG) LASIK surgery. A total of 28 patients (50%) were males and 50 females (50%). All eyes were treated with the excimer laser platform STAR S4 IR (Abbott Medical Optics, Santa Ana, CA) using the CustomVue procedure and the iDesign aberrometer for the profile calculation. Corneal flaps were created using the iFS femtosecond laser (Abbott Medical Optics, Santa Ana, CA). Mean patient age of the analyzed sample was 34 years (standard deviation, SD: 4.8; range 21 to 58 years). A comprehensive visual and ocular examination was performed preoperatively in all cases that included manifest and cycloplegic refraction, uncorrected distance visual acuity (UDVA) and corrected distance visual acuity (CDVA). Postoperatively, patients were examined the day after surgery and then during follow-up visits at 1 week and 2 months after surgery. Change from baseline of HOA and Spherical Aberrations was measured after the 2 months follow up visit
At 2 months postoperatively, UDVA was 0.8 or better in 95 % (95 eyes) and was 1.0 or better in 91 % (91 eyes). 81 % (81 eyes) achieved 1.2 UDVA. There were no losses of 2 or more lines of CDVA, gains of 2 lines of CDVA were observed in 5% (5 eyes). Regarding predictability, at 2 months, 97 (97 %) and 95 eyes (95 %) had a postoperative SE within ±1.00D and ±0.50D of emmetropia, respectively. There was no significant increase of high order RMS and primary spherical aberration postoperatively. Conversely, a nonsignificant decreasing trend in HOA values was found.
The new iDesign Aberrometer used to instruct the ablation profile to the excimer laser provided a safe and effective procedure for the reduction of myopia and myopic astigmatism. Moreover a trend for HOA values to decrease, although not with statistical significance, could be shown.
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