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R. Krishnamurthy, T.D. Papakostas, A.J. Kanellopoulos; Initial Hyperopic and Hyperopic Astigmatism LASIK Experience with the WaveLight ALLEGRETTO WAVE Excimer Laser in 120 Consecutive Eyes . Invest. Ophthalmol. Vis. Sci. 2006;47(13):3612.
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© ARVO (1962-2015); The Authors (2016-present)
To evaluate the safety and efficacy of the ALLEGRETTO WAVETM excimer laser system in LASIK for hyperopia and/or hyperopic astigmatism utilizing the topography–guided platform in order to compensate for angle kappa.
A hundred and twenty consecutive LASIK cases for hyperopia with or without astigmatism treated with the Topography–guided platform of the ALLEGRETTO Eye–QTM excimer laser (Wavelight Technologie AG, Erlangen, Germany) were prospectively evaluated up to 12 months post operatively. The mean pre–operative sphere was +3.08 (SD+/– 1.56) D with a range of +0.25 to +6.00 D. The mean preoperative cylinder was +0.80 (SD+/– 1.01 D) (range 0 to +4.00). Flaps were created with the Moria M2 90 single use (Moria SE, Antony, France) microkeratome. Parameters evaluated were pre and post–operative refractive error, UCVA, BSCVA, higher order aberration change, angle kappa and its relative centration to the ablation zone on topography; and contrast sensitivity.
One hundred and twelve eyes were available for follow up at 12 months. Mean uncorrected visual acuity improved from preoperative of 20/48 (SD+/–0.23) to 20/23 (SD+/– 0.173) 69% of eyes were within +/– 0.50 D of refractive goal respectively. None of the eyes lost more than 1 line of BSCVA. There was a mean +0.32 D regression in the spherical equivalent from the 1st to the 3rd month. Relative center visual axis center to the ablation center (the deviation of ablation center to the optical axis center) was 0.5mm.
Hyperopic LASIK utilizing the topography–guided WaveLight ALLEGRETTO eyeQTM excimer laser appears to be safe and effective in the correction of low, moderate and high hyperopia and/or hyperopic astigmatism. The results appear to be safe and predictable for the low and moderate hyperopia groups; they appear to carry similar promise in the high hyperopia / high cylinder group.The topography guided platform appears to better center the ablation to the visual axis vs. the papillary center with high level of reproducibility in all cases, and compared to our previously published results with standard hyperopic treatments with this laser.
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