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Evaluation Of The Tetraflex and Crystalens Accommodative IOLs Using the iTrace Aberrometer

Evaluation Of The Tetraflex and Crystalens Accommodative IOLs Using the iTrace Aberrometer. Donald R. Sanders, M.D., PhD. David C. Brown M.D. Deepak Chitkara, M.B., ChB. D.O. Normal Accommodation – 30 Y/O Refraction Map. DISTANCE. NEAR. NEAR. DIFFERENCE.

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Evaluation Of The Tetraflex and Crystalens Accommodative IOLs Using the iTrace Aberrometer

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  1. Evaluation Of The Tetraflex and Crystalens Accommodative IOLs Using the iTrace Aberrometer Donald R. Sanders, M.D., PhD. David C. Brown M.D. Deepak Chitkara, M.B., ChB. D.O.

  2. Normal Accommodation – 30 Y/O Refraction Map DISTANCE NEAR NEAR DIFFERENCE

  3. Normal Accommodation 3D Refraction Map (Tilted) DISTANCE NEAR DIFFERENCE

  4. Normal Accommodation 3D Refraction Map (Vertical) DISTANCE NEAR DIFFERENCE

  5. Normal Accommodation 3D Refraction Map (Vertical) DISTANCE Hyperopia Mean = +0.4D 1.2D Refractive Range Myopia

  6. Normal Accommodation 3D Refraction Map (Vertical) NEAR Mean = -4.2D 3.5D Refractive Range

  7. Normal Accommodation 3D Refraction Map (Vertical) DIFFERENCE Mean = -4.75D 2.4D Refractive Range

  8. With Normal Accommodation and Near Focus • Refraction shifts to More Myopia • Refractive Range Increases

  9. Monofocal IOL 3D Refraction Map (Vertical) DISTANCE NEAR DIFFERENCE

  10. Monofocal IOL 3D Refraction Map (Vertical) DIFFERENCE No Refractive Difference 0.6D Refractive Range

  11. MONOFOCALPSF @ 33 cm. ACCOMMODATIVE EFFORT DISTANCE NO DIFFERENCE IN PSF

  12. MONOFOCALImage SimulationView @ 33 cm. ACCOMMODATIVE EFFORT DISTANCE NO DIFFERENCE IN IMAGE

  13. Pupil Size Same for Distance & Near NEAR DISTANCE DIFFERENCE

  14. Pupil Size Same for Distance & Near NEAR DISTANCE DIFFERENCE

  15. Tetraflex in Other Eye 3D Refraction Map DISTANCE NEAR DIFFERENCE

  16. Tetraflex in Other Eye 3D Refraction Map DISTANCE +2.8D 4.1D Refractive Range Mean = +1.6D -1.3D

  17. Tetraflex in Other Eye 3D Refraction Map NEAR +3.8D Mean = +1.1D 8.6D Refractive Range -4.8D

  18. Tetraflex in Other Eye 3D Refraction Map DIFFERENCE +1.1D 5.5D Refractive Range Mean = -0.4D -4.5D

  19. TETRAFLEXPSF @ 33 cm. ACCOMMODATIVE EFFORT DISTANCE SUBSTANTIAL CHANGE IN PSF

  20. TETRAFLEXImage SimulationView @ 33 cm. ACCOMMODATIVE EFFORT DISTANCE SUBSTANTIAL IMPROVEMENT IN NEAR

  21. Tetraflex Accommodative IOL 3D Refraction Map DISTANCE NEAR DIFFERENCE

  22. Tetraflex Accommodative IOL 3D Refraction Map DISTANCE 2.1D 1.9D Refractive Range Mean =+1.3D 0.2D

  23. Tetraflex Accommodative IOL 3D Refraction Map NEAR 2.6D 5D Refractive Range Mean = +1.2D -2.4D

  24. Tetraflex Accommodative IOL 3D Refraction Map DIFFERENCE 1.4D Mean = 0.1D 4.2D Refractive Range -2.8D

  25. -3.8D -5.5D -5.2D Tetraflex Accommodative IOL 3D Refraction Map DISTANCE NEAR DIFFERENCE Widened Refractive Range and More Myopia at Near and in Difference Map

  26. -3.5D -5.2D -3.1D Tetraflex Accommodative IOL 3D Refraction Map DISTANCE NEAR DIFFERENCE Widened Refractive Range and More Myopia at Near and in Difference Map

  27. -0.6D -1.4D -2.1D Tetraflex Accommodative IOL 3D Refraction Map DISTANCE NEAR DIFFERENCE Widened Refractive Range and More Myopia at Near and in Difference Map

  28. Summary The Tetraflex Accommodative IOL is associated with a widened refractive range and more myopia with near fixation, which can explain the enhanced near acuity compared to monofocal IOLs.

  29. -3.5D -3.5D Patient AB – OD Crystalens3D Refraction Map NEAR DISTANCE DIFFERENCE

  30. -2.3D Patient GB – OD Crystalens3D Refraction Map NEAR DISTANCE DIFFERENCE

  31. Patient GB – OS Crystalens3D Refraction Map NEAR DISTANCE DIFFERENCE

  32. -2.3D -2.8D Patient RC – OD Crystalens3D Refraction Map NEAR DISTANCE DIFFERENCE

  33. Patient DB – OD Crystalens3D Refraction Map NEAR DISTANCE DIFFERENCE

  34. Patient DB – OS Crystalens3D Refraction Map NEAR DISTANCE DIFFERENCE

  35. -1.3D -1.4D Patient GF – OD Crystalens3D Refraction Map NEAR DISTANCE DIFFERENCE

  36. -2.5D Patient PS – OS Crystalens3D Refraction Map NEAR DISTANCE DIFFERENCE

  37. Patient ER – OD Crystalens3D Refraction Map NEAR DISTANCE DIFFERENCE

  38. Patient ER – OS Crystalens3D Refraction Map NEAR DISTANCE DIFFERENCE

  39. Patient BV – OD Crystalens3D Refraction Map NEAR DISTANCE DIFFERENCE

  40. Patient MA – OS Crystalens3D Refraction Map NEAR DISTANCE DIFFERENCE

  41. Summary The Crystalens Accommodative IOL is associated with a widened refractive range and more myopia with near fixation in some cases. In others no clear accommodative effect is obvious

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