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Ocular Aberrations and Quality of Vision with Aspheric Single-Piece and Spherical Multi-Piece IOL: Contra lateral Compar

Ocular Aberrations and Quality of Vision with Aspheric Single-Piece and Spherical Multi-Piece IOL: Contra lateral Comparative Study. Ahmed Assaf MD, FRCSEd. the author of this poster have received travel expense reimbursement from AMO Company. Intraocular Lenses (IOLs).

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Ocular Aberrations and Quality of Vision with Aspheric Single-Piece and Spherical Multi-Piece IOL: Contra lateral Compar

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  1. Ocular Aberrations and Quality of Vision with Aspheric Single-Piece and Spherical Multi-Piece IOL: Contra lateral Comparative Study Ahmed Assaf MD, FRCSEd the author of this poster have received travel expense reimbursement from AMO Company

  2. Intraocular Lenses (IOLs) • Spherical aberration (SA) and coma are the commonest HOAs to affect quality of vision • Aspheric IOLs with negative SA aim to balance the positive corneal SA, thus reducing the amount of total ocular SA with respect to conventional spherical IOLs

  3. Spherical 3-piece (Sensar AR40e) IOL

  4. Aspheric (Tecnis 1-P, Tecnis ZCB00) IOL OPTIC of the lens has negative spherical aberration of 0.27µm to compensate for average corneal positive spherical aberration

  5. Purpose of the Study • To test visual outcomes and higher ocular aberrations of aspheric (Tecnis 1-P) IOL against spherical (Sensar AR40e™) biconvex multi-piece IOL. • Both lenses are made of hydrophobic acrylic and by the same company (AMO, Abbott Medical Optics, Santa Ana, CA)

  6. Spherical Aberration OCULUS Optikgeräte GmbH, Easygraph VISX ™ WaveScan Wavefront System P=0.81 P<0.001 0.42 ±0.11 Micron 0.29 ±0.09 0.28 ±0.08 0.006 ±0.03 n=28 Aspheric (Tecnis 1-P) Spherical (Sensar) Spherical (Sensar) Aspheric (Tecnis 1-P) Post Operative Pre Operative

  7. Coma OCULUS Optikgeräte GmbH, Easygraph VISX ™ WaveScan Wavefront System P=0.76 P=0.88 Micron 0.167 ±0.09 0.158 ±0.085 0.151 ±0.071 0.154 ±0.071 Aspheric (Tecnis 1-P) Spherical (Sensar) Spherical (Sensar) Aspheric (Tecnis 1-P) Post Operative Pre Operative

  8. Trefoil OCULUS Optikgeräte GmbH, Easygraph VISX ™ WaveScan Wavefront System Micron 0.185 ± 0.12 0.157 ± 0.13 0.145 ± 0.12 0.162 ± 0.12 P=0.38 P=0.47 Aspheric (Tecnis 1-P) Spherical (Sensar) Spherical (Sensar) Aspheric (Tecnis 1-P) Post Operative Pre Operative

  9. n=28 VectorVisionTM 1000E Chart 85cd/m2 6 wks postop. P=0.043 Log Contrast Sensitivity (CS) Cycles per Degree (CPD)

  10. n=28 VectorVisionTM 1000E Chart 6cd/m2 6 wks postop. P<0.001 P<0.001 P<0.001 Log Contrast Sensitivity (CS) P<0.001 Cycles per Degree (CPD)

  11. Conclusion Aspheric (Tecnis 1-P) IOL significantly reduce ocular spherical aberration. This is reflected as improved quality of vision mainly in mesopic conditions.

  12. Conclusion No significant differences regards ocular coma and trefoil of aspheric single piece IOL compared to spherical multi-piece IOL. Thank You

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