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Higher Order Aberration

Higher Order Aberration. Following Implantation of 4 Foldable Lens Designs. Robert G. Martin, MD  Donald R. Sanders, MD, PhD. Study Objective.

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Higher Order Aberration

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  1. Higher Order Aberration Following Implantation of 4 Foldable Lens Designs Robert G. Martin, MD  Donald R. Sanders, MD, PhD

  2. Study Objective • Objective Of The Study Was To Determine If Implantation Of Different Foldable Lens Designs Resulted In Different Amounts Of Higher Order Aberrations

  3. Study Design • Patients Had Tracey VFA Performed On Eyes To Undergo Cataract Extraction • Patients Were Randomly Assigned To Receive 1 Of 4 Foldable Lens Designs • Tracey VFA Was Repeated At 1 Week Postoperatively

  4. Pupil Size • All pre and postoperative measurements of higher order aberrations were done with a 4.5mm pupil size

  5. Foldable Lens Designs • STAAR Collamer • STAAR Plate Haptic Silicone • ALCON SA-60 • AMO Sensar

  6. Preoperative Total Higher Order (HO) Aberrations No Significant Difference Between IOLs

  7. N = 21 N = 24 N = 19 N = 16 One-Week PostoperativeTotal Higher Order (HO) Aberrations Collamer significantly better than STAAR plate and Alcon SA-60 (p< 0.005)

  8. Collamer IOL • Collamer Had Significantly Less HO Aberrations Than STAAR Plate And SA-60 (P 0.005). • Difference With Sensar Was Not Significant.

  9. Note • Sample size may be too small, especially with the Sensar group, and results could change with a larger sample. However, we have strong clinical indications that less higher order aberrations are induced with the Collamer lens as compared to plate lenses and AMO lenses.

  10. Pre-op – Average H.O. Aberrations STAAR Collamer STAAR Plate Alcon SA-60 AMO Sensar

  11. Postop – Average H.O. Aberrations STAAR Collamer STAAR Plate Alcon SA-60 AMO Sensar

  12. Summary • Three Other Foldable Lenses Tested Had Between 55% and 117% More Higher Order Aberrations at 1 Week Postoperatively than the STAAR Collamer IOL

  13. This Is A Study Of Optical Aberrations • Is it clinically significant? • Is this especially significant in patients with large pupils? • Do we need a bigger implant? • Do we need a different shaped lens? • Do we need a different edge? • Do we need a different material? Robert G. Martin, MD  Donald R. Sanders, MD, PhD

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