![Page 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/1.jpg)
Evaluation Of TheEvaluation Of The Tetraflex Tetraflex and Crystalens and Crystalens
Accommodative IOLs Using the Accommodative IOLs Using the iTrace AberrometeriTrace Aberrometer
Donald R. Sanders, M.D., PhD.Donald R. Sanders, M.D., PhD.David C. Brown M.D.David C. Brown M.D.
Deepak Chitkara, M.B., ChB. D.O.Deepak Chitkara, M.B., ChB. D.O.
![Page 2: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/2.jpg)
DIFFERENCEDIFFERENCE
Normal Accommodation – 30 Y/ONormal Accommodation – 30 Y/O Refraction MapRefraction Map
NEARNEARDISTANCEDISTANCE NEARNEAR
![Page 3: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/3.jpg)
Normal Accommodation Normal Accommodation 3D Refraction Map (Tilted)3D Refraction Map (Tilted)
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 4: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/4.jpg)
Normal Accommodation Normal Accommodation 3D Refraction Map (Vertical)3D Refraction Map (Vertical)
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 5: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/5.jpg)
Normal Accommodation Normal Accommodation 3D Refraction Map (Vertical)3D Refraction Map (Vertical)
DISTANCEDISTANCE
Mean = +0.4DMean = +0.4D
1.2D 1.2D RefractiveRefractive
RangeRange
HyperopiaHyperopia
MyopiaMyopia
![Page 6: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/6.jpg)
Normal Accommodation Normal Accommodation 3D Refraction Map (Vertical)3D Refraction Map (Vertical)
NEARNEAR
Mean = -4.2DMean = -4.2D3.5D 3.5D Refractive Refractive
RangeRange
![Page 7: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/7.jpg)
Normal Accommodation Normal Accommodation 3D Refraction Map (Vertical)3D Refraction Map (Vertical)
DIFFERENCEDIFFERENCE
Mean = -4.75DMean = -4.75D
2.4D Refractive Range2.4D Refractive Range
![Page 8: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/8.jpg)
With Normal Accommodation With Normal Accommodation and Near Focusand Near Focus
- Refraction shifts to More MyopiaRefraction shifts to More Myopia
- Refractive Range IncreasesRefractive Range Increases
![Page 9: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/9.jpg)
Monofocal IOL Monofocal IOL 3D Refraction Map (Vertical)3D Refraction Map (Vertical)
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 10: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/10.jpg)
Monofocal IOL Monofocal IOL 3D Refraction Map (Vertical)3D Refraction Map (Vertical)
DIFFERENCEDIFFERENCE
No Refractive No Refractive DifferenceDifference
0.6D0.6D Refractive Refractive
RangeRange
![Page 11: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/11.jpg)
MONOFOCALMONOFOCALPSF @ 33 cm.PSF @ 33 cm.
DISTANCEDISTANCEACCOMMODATIVE ACCOMMODATIVE
EFFORTEFFORT
NO DIFFERENCE IN PSFNO DIFFERENCE IN PSF
![Page 12: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/12.jpg)
MONOFOCALMONOFOCALImage SimulationImage Simulation
View @ 33 cm.View @ 33 cm.
DISTANCEDISTANCEACCOMMODATIVE ACCOMMODATIVE
EFFORTEFFORT
NO DIFFERENCE IN IMAGENO DIFFERENCE IN IMAGE
![Page 13: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/13.jpg)
Pupil Size Same for Distance & NearPupil Size Same for Distance & Near
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 14: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/14.jpg)
Pupil Size Same for Distance & NearPupil Size Same for Distance & Near
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 15: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/15.jpg)
Tetraflex in Other Eye Tetraflex in Other Eye 3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 16: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/16.jpg)
Tetraflex in Other Eye Tetraflex in Other Eye 3D Refraction Map3D Refraction Map
DISTANCEDISTANCE
Mean = +1.6DMean = +1.6D4.1D 4.1D RefractiveRefractive
RangeRange
+2.8D+2.8D
-1.3D-1.3D
![Page 17: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/17.jpg)
Tetraflex in Other Eye Tetraflex in Other Eye 3D Refraction Map3D Refraction Map
NEARNEAR
Mean = +1.1DMean = +1.1D
8.6D 8.6D Refractive Refractive
RangeRange
+3.8D+3.8D
-4.8D-4.8D
![Page 18: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/18.jpg)
Tetraflex in Other Eye Tetraflex in Other Eye 3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
Mean = -0.4DMean = -0.4D5.5D 5.5D RefractiveRefractive
RangeRange
+1.1D+1.1D
-4.5D-4.5D
![Page 19: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/19.jpg)
TETRAFLEXTETRAFLEXPSF @ 33 cm.PSF @ 33 cm.
DISTANCEDISTANCEACCOMMODATIVE ACCOMMODATIVE
EFFORTEFFORT
SUBSTANTIAL CHANGE IN PSFSUBSTANTIAL CHANGE IN PSF
![Page 20: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/20.jpg)
TETRAFLEXTETRAFLEXImage SimulationImage Simulation
View @ 33 cm.View @ 33 cm.
DISTANCEDISTANCEACCOMMODATIVE ACCOMMODATIVE
EFFORTEFFORT
SUBSTANTIAL IMPROVEMENT IN NEARSUBSTANTIAL IMPROVEMENT IN NEAR
![Page 21: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/21.jpg)
Tetraflex Accommodative IOL Tetraflex Accommodative IOL 3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 22: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/22.jpg)
Tetraflex Accommodative IOL Tetraflex Accommodative IOL 3D Refraction Map3D Refraction Map
DISTANCEDISTANCE
Mean =+1.3DMean =+1.3D1.9D 1.9D
RefractiveRefractive RangeRange
2.1D2.1D
0.2D0.2D
![Page 23: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/23.jpg)
Tetraflex Accommodative IOL Tetraflex Accommodative IOL 3D Refraction Map3D Refraction Map
NEARNEAR
Mean = +1.2DMean = +1.2D5D 5D RefractiveRefractive
RangeRange
2.6D2.6D
-2.4D-2.4D
![Page 24: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/24.jpg)
Tetraflex Accommodative IOL Tetraflex Accommodative IOL 3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
Mean = 0.1DMean = 0.1D4.2D 4.2D
Refractive Refractive RangeRange
1.4D1.4D
-2.8D-2.8D
![Page 25: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/25.jpg)
Tetraflex Accommodative IOL Tetraflex Accommodative IOL 3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-3.8D-3.8D-5.5D-5.5D
-5.2D-5.2D
Widened Widened Refractive Range Refractive Range and More Myopia and More Myopia at Near and in at Near and in Difference MapDifference Map
![Page 26: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/26.jpg)
Tetraflex Accommodative IOL Tetraflex Accommodative IOL 3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-3.5D-3.5D
-5.2D-5.2D
-3.1D-3.1D
Widened Widened Refractive Range Refractive Range and More Myopia and More Myopia at Near and in at Near and in Difference MapDifference Map
![Page 27: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/27.jpg)
Tetraflex Accommodative IOL Tetraflex Accommodative IOL 3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-0.6D-0.6D
-1.4D-1.4D
-2.1D-2.1D
Widened Widened Refractive Range Refractive Range and More Myopia and More Myopia at Near and in at Near and in Difference MapDifference Map
![Page 28: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/28.jpg)
SummarySummary
The Tetraflex Accommodative The Tetraflex Accommodative IOL is associated with a widened IOL is associated with a widened refractive range and more myopia refractive range and more myopia with near fixation, which can with near fixation, which can explain the enhanced near acuity explain the enhanced near acuity compared to monofocal IOLs. compared to monofocal IOLs.
![Page 29: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/29.jpg)
Patient AB – OD CrystalensPatient AB – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-3.5D-3.5D
-3.5D-3.5D
![Page 30: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/30.jpg)
Patient GB – OD CrystalensPatient GB – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-2.3D-2.3D
![Page 31: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/31.jpg)
Patient GB – OS CrystalensPatient GB – OS Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 32: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/32.jpg)
Patient RC – OD CrystalensPatient RC – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-2.3D-2.3D
-2.8D-2.8D
![Page 33: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/33.jpg)
Patient DB – OD CrystalensPatient DB – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 34: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/34.jpg)
Patient DB – OS CrystalensPatient DB – OS Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 35: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/35.jpg)
Patient GF – OD CrystalensPatient GF – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-1.3D-1.3D
-1.4D-1.4D
![Page 36: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/36.jpg)
Patient PS – OS CrystalensPatient PS – OS Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-2.5D-2.5D
![Page 37: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/37.jpg)
Patient ER – OD CrystalensPatient ER – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 38: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/38.jpg)
Patient ER – OS CrystalensPatient ER – OS Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 39: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/39.jpg)
Patient BV – OD CrystalensPatient BV – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 40: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/40.jpg)
Patient MA – OS CrystalensPatient MA – OS Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
![Page 41: 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,](https://reader036.vdocuments.site/reader036/viewer/2022062301/56649f295503460f94c41a56/html5/thumbnails/41.jpg)
SummarySummary
The Crystalens Accommodative The Crystalens Accommodative IOL is associated with a widened IOL is associated with a widened refractive range and more myopia refractive range and more myopia with near fixation in some cases. with near fixation in some cases. In others no clear accommodative In others no clear accommodative effect is obvious effect is obvious