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S.T. Awwad, M. El–Kateb, W. Bowman, D. Cavanagh, J.P. McCulley; LADARVision CustomCornea LASIK For Myopic/Astigmatic Eyes: Quantitative And Qualitative Results . Invest. Ophthalmol. Vis. Sci. 2004;45(13):2820.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose: To measure the quantitative visual results (i.e. best spectacle corrected visual acuity (BSCVA), uncorrected visual acuity (UCVA), predictability and stability) as well as qualitative visual results (contrast sensitivity) of eyes treated with the LADARVision CustomCornea platform. Methods: Visual outcomes of the first 60 eyes treated with the LADARVision CustomCornea system were evaluated preoperatively and at one day, one week, one month, and 3 months postoperatively. Results: The mean age of the patients was 42.2 +/– 9.2 years, and 70% were females. Preoperative manifest refraction spherical equivalence (MRSE) was –3.57+/– 1.54 D (range: –0.125 D to –6.75 D). The manifest sphere was –3.84 +/– 1.58 D while the manifest cylinder was + 0.55 +/– 0.29 D. All preoperative eyes had BSCVA of 20/20 or better. At one week, 76% were 20/20 and 93% were 20/25 (UCVA). At one month, 86% became 20/20 and 98% 20/25, and at 3 months, 94 % and 100% were 20/20 and 20/25, respectively. All eyes with MRSE <–3.00 D preoperatively had UCVA of 20/20 or better at 1 month and 3 months after the procedure. UCVA as measured by ETDRS at one month and 3 months postoperatively was significantly better than preoperative BSCVA: 71% at one month were 20/15 or better, as compared to 29% preoperatively. Regarding predictability, 90% of eyes were within +/– 0.50 D of intended correction at one week, 93% at one month, and 100% at 3 months postoperatively. As for stability, 90% of eyes had less than 0.5 D of refractive change between one week and one month postoperatively, while no eye had a change of more than 0.5 D between one month and 3 months postoperatively. No eye lost any lines of BSCVA throughout the follow–up period. The qualitative visual outcome is best illustrated by the contrast sensitivity profile which was better than preoperatively under all conditions, especially under scotopic conditions with glare, wherein postoperative eyes scored better at all the frequencies (normalized ratios of 1.1 vs 1.0 for 3 Hz, 1.05 vs 0.95 for 6 Hz, 1.15 vs 1.10 for 12 Hz, and 1.2 vs 1.1 for 18 Hz. Conclusions:LADARVision CustomCornea LASIK results are quantitatively and qualitatively superior to our previously reported conventional LASIK results. CustomCornea LASIK is safe and effective, with excellent predictability and stability.
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