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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

Six Months International Experience with New Iris Registration Technology & its Impact on Clinical Outcomes. 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. Purpose.

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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

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  1. Six Months International Experience with New Iris Registration Technology & its Impact on Clinical Outcomes 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. Purpose • To evaluate clinical outcomes based on implementing automated iris registration technology with CustomVue Wavefront-guided ablation 2006年中國上海COOC會議

  3. Methods • Six months Retrospective Study • Wavefront analysis: Hartmann Shack Aberrometer (Wavescan, VISX, Sunnyvale, CA, U.S.A) • Excimer laser: VISX Star S4 • M2 microkeratome (U.S.A.) • F/U time: 1 day, 1 week, 1, 3, 6, 12 months 2006年中國上海COOC會議

  4. Patient’s Characteristics eyes age M/F General group w/ IR 152 28.3 25/52 w/o IR 121 27.4 19/42 High astigmatism group (astigmatism>1.5D) w/ IR 83 25.7 15/28 w/o IR 65 24.5 13/21 2006年中國上海COOC會議

  5. Part1 General group: pre-op data with IR without IR 152 eyes 121 eyes MR -5.66-1.23X117。 -5.83-1.26X112。 MRSE -6.27 -5.39 WR -5.81-1.36X116。 -5.37-1.39X110。 WRSE -6.49 -6.52 MRSE>-6D 55% 77% Cyl>-0.5D 81% 81% RMS 8.86μ 9.26μ 2006年中國上海COOC會議

  6. Post OP UCVA > 20/16 2006年中國上海COOC會議

  7. Post OP UCVA > 20/20 2006年中國上海COOC會議

  8. Post OP UCVA < 20/25 2006年中國上海COOC會議

  9. Pre_OP BCVA & Post_OP UCVA Comparison Between IR & Non IR 2006年中國上海COOC會議

  10. single eye did CV with IR and the other one did CV without IR UCVA IR>Non-IR IR=Non-IR IR<Non-IR 1 day 18%67% 14% 3 month 25%64% 1% 2006年中國上海COOC會議

  11. Post-OP UCVA > 20/16 (HIGH ASTIG.) 2006年中國上海COOC會議

  12. Part2 High astigmatism group: Pre-OP data with IR without IR 83 eyes 65 eyes MRDC -2.0 -1.92 WRDC -2.14 -2.02 MRDC>2.0D 50% 43% MRDC>2.5D 30% 27% HOA 9.44μ 9.98μ 2006年中國上海COOC會議

  13. Post-OP UCVA > 20/20 (HIGH ASTIG.) 2006年中國上海COOC會議

  14. Post-OP UCVA < 20/25 (HIGH ASTIG.) 2006年中國上海COOC會議

  15. Pre-OP BCVA & Post-OP UCVA Comparison Between IR & Non IR (High Astig Group) 2006年中國上海COOC會議

  16. single eye did CV with IR and the other one did CV without IR (High Astigma Group) UCVA IR>Non-IR IR=Non-IR IR<Non-IR 1 day 20.8%70.8% 8.3% 3 month 33.3%66.7% 0 2006年中國上海COOC會議

  17. Pre-OP BCVA & Post-OP Cylinder Comparison: CV without IR 2006年中國上海COOC會議

  18. Pre-OP & Post-OP Cylinder Comparison: with IR Group 2006年中國上海COOC會議

  19. Part3 Cyclotorsional Eye Motion Study Angle of rotation: 0°~1° : 31% 1°~2° : 26% 2°~3° : 19% 3°~4° : 13% 4°~5° : 6% >5° : 4% 2006年中國上海COOC會議

  20. Part4 Cyclotorsional Eye Motion Study (OD,OS)= (CW,CCW) : 9.8% (OD,OS)= (CCW,CW) : 52.8% (OD,OS)= (CW,CW) : 12.2% (OD,OS)= (CCW,CCW) : 25.2% Mean excyclotorsion of OD per patient: 2.03º Mean excyclotorsion of OS per patient: 1.89º 2006年中國上海COOC會議

  21. Conclusions • Cyclotorsional registration is essential • All CV guided treatment provide excellent clinical results. But the CV with IR technology is a more efficient and precise LVC treatment. • IR can produce best vision than is possible with non-IR treatment especially for high astigmatism patient. • Automated iris registration optimizes clinical outcomes through alignment of wavefront map and laser ablation in this study and further investigations are developing 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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