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CustomVue vs Conventional LASIK: one year study

CustomVue vs Conventional LASIK: one year study. David Chao-Kai Chang M.D. M.P.H. Nobel Eye Clinic, Taipei, Taiwan 台灣諾貝爾眼科醫院 張朝凱醫師. Introductions. WFG-LASIK More predictable outcome Less induction of HOA Better night vision

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CustomVue vs Conventional LASIK: one year study

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  1. CustomVue vs Conventional LASIK: one year study David Chao-Kai Chang M.D. M.P.H. Nobel Eye Clinic, Taipei, Taiwan 台灣諾貝爾眼科醫院 張朝凱醫師 2006年中國上海COOC會議

  2. Introductions • WFG-LASIK More predictable outcome Less induction of HOA Better night vision • To compare outcomes of LASIK using conventional Visx S4 and CustomeVue wavefront system in Taiwan 2006年中國上海COOC會議

  3. Patients • Recruitment period  July 1 2004 – June 30 2005 • Conventional LASIK (VISX S4) 1360 subjects  2685 eyes • CustomeVue LASIK ( Wavescan Version 3.5) 262 subjects  500 eyes 2006年中國上海COOC會議

  4. Pre-OP Data Conventional CustomeVue (n= 2685) (n=500) Age 27.3y/o 28.5y/o M:F 3.3:6.7 3.8:6.2 MRSE -6.28±1.18 -6.59±1.4 Cyl -0.63± 0.42 -0.75±0.45 WRSE NE -6.32±1.5 2006年中國上海COOC會議

  5. Results • F/U time: at 1day, 1 week, 1、3 、6 、12 month (Since July 1 2004 to June 30 2005) • UCVA • BCVA • MRSE • Wavefront HOA • Contrast Sensitivity 2006年中國上海COOC會議

  6. Part1 UCVA-Conventional 87% of eyes achieved 20/20 UCVA at 12 Month Follow-Up 2006年中國上海COOC會議

  7. Part1 UCVA-CustomeVue 94% of eyes achieved 20/20 UCVA at 12 Month Follow-Up 2006年中國上海COOC會議

  8. Part2 Post-OP UCVA vs Pre-OP BSCVA- Conventional 2006年中國上海COOC會議

  9. Part2 Post-OP UCVA vs Pre-OP BSCVA- CustomeVue 2006年中國上海COOC會議

  10. Part2 Loss BCVA Conventional CustomeVue Loss of ≧ 2 lines BCVA 1 mon 0.62% 0 3 mon 0.55% 0.3% 6 mon 0.37% 0 12 mon 0.35% 0 BCVA≦ 20/25 1 mon 0.57% 0 3 mon 0.48% 0.3% 6 mon 0.36% 0 12 mon 0.35% 0 2006年中國上海COOC會議

  11. Part3 MRSE-Conventional 2006年中國上海COOC會議

  12. Part3 MRSE-CustomeVue 2006年中國上海COOC會議

  13. Part4 Change in HOA (µ) Conventional LASIK CustomeVue LASIK 2006年中國上海COOC會議

  14. Part5 CS-Conventional 2006年中國上海COOC會議

  15. Part5 CS-CustomVue 2006年中國上海COOC會議

  16. Discussion 2006年中國上海COOC會議

  17. Issue 1 – Stability • Better vision obtained UCVA ≧20/16 at 1、3、6、12 months F/U CustomeVue LASIK ＞Conventional LASIK • Better vision stability 87% of conventional group achieved 20/20 UCVA at 12 months F/U 94% of CustomeVue group achieved 20/20 UCVA at 12 months F/U 2006年中國上海COOC會議

  18. Issue 2 - Safety • In CustomeVue group at 3 month F/U Loss of ≧ 2 lines BCVA: 0.3% BCVA≦ 20/25 : 0.3% • Flap complications were the causes CustomeVue LASIK is safe! • Some flap problem must be overcome! 2006年中國上海COOC會議

  19. Issue 3 - Predicability • MRSE ± 0.50D (12 months) Conventional: CustomeVue = 76% :84% • MRSE ± 1.0 D (12 months) Conventional: CustomeVue = 92% :95% Not significant • Some undercorrection was found by CustomeVue Nomogram building is important! 2006年中國上海COOC會議

  20. Issue 4 - Visual Quality • CustomeVue group had a significant improvement in post-op UCVA compared with pre-op BCVA • CustomeVue group had a significant lower mean increase in HOA than conventaional group • CustomeVue LASIK really has better visual quality • Higher patient satisfaction ! 2006年中國上海COOC會議

  21. Issue 5 - Scopotic Complains • Contrast sensitivity is more stable in CustomeVue group • Less HOA increase in CustomeVue group • CustomeVue LASIK less induce scopotic problems • However, pupil diameter is another important factor ! 2006年中國上海COOC會議

  22. Thanks for your attentions! 2006年中國上海COOC會議

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