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Comparison of Hyperopic Lasik with Wavefront-Optimized, Conventional, and Wavefront-Guided Platforms

Comparison of Hyperopic Lasik with Wavefront-Optimized, Conventional, and Wavefront-Guided Platforms

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Comparison of Hyperopic Lasik with Wavefront-Optimized, Conventional, and Wavefront-Guided Platforms

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  1. Comparison of Hyperopic Lasik with Wavefront-Optimized, Conventional, and Wavefront-Guided Platforms Lewis R. Groden, M.D.(1,2) Timothy Saunders, M.D.(1) 1 University of South Florida Dept of Ophthalmology Tampa, FL 2 LasikPlus Vision Center Tampa, FL Financial Disclosure: LRG: consultant, Alcon TS: None

  2. Purpose • To determine if the uncorrected visual acuity (UCVA) results of IntraLase hyperopic lasik differ based on the excimer platform used

  3. Methods:3 excimer platforms • Alcon Wavelight Allegretto Eye Q 400 wavefront-optimized (WFO) • AMO VISX S4 IR conventional (VSX) • AMO VISX S4 IR CustomVue wavefront-guided (CV)

  4. Methods • Retrospective chart review • 135 eyes, consecutive - WFO 34 eyes - VSX 68 eyes - CV 33 eyes • Hyperopic IntraLase lasik / Target= plano • One surgeon (LRG) • Follow-up: 3 month minimum

  5. Preop refractive error sphere cyl µ sphere VSX +1.25- +4.25 0- -1.50 +2.3 CV +1.25- +4.75 0- -1.75 +2.8 WFO +1.00- +5.50 0- -1.75 +2.5

  6. Patient demographics Age Sex years M : F (%) • VSX 44-64 (µ 54) 55 : 45 • CV 27-60 (µ 49) 41 : 59 • WFO 33-64 (µ 52) 50 : 50

  7. Results: UCVA 20/20 or better • Total: 94 / 135 eyes (70%) • WFO 25 / 34 eyes (74%) • VSX 49 / 68 eyes (72%) • CV 20 / 33 eyes (61%) • N.S. (Fisher’s exact test) wfo v cv p=0.31 ; wfo v vsx p=1.0 cv v vsx p=0.26

  8. Results: UCVA 20/25 or better • Total 114 / 135 eyes (84%) • WFO 30 / 34 eyes (88%) • VSX 58 / 68 eyes (85%) • CV 26 / 33 eyes (79%) • N.S. (Fisher’s exact test) wfo v cv p=0.34 ; wfo v vsx p=0.77 cv v vsx p= 0.41

  9. Previous StudiesFDA trials: hyperopic lasik results Laser SE /Cyl UCVA 20/20 20/40 (9-12 months) • VISX S2, S3 55% 98% • VISX S4 CV +3/+2 72 95 • B&L +4/+2 59 95 • Ladar 4000 CC +5/-3 59 95 • Wavelight +6/+5 68 98

  10. Conclusion • Good UCVA results were obtained with hyperopic IntraLase lasik done on each of the platforms studied. • There was no statistically significant difference in achieved UCVA between these three platforms • These results compare favorably to the results of the hyperopic lasik FDA trials