evaluation of the tetraflex and crystalens accommodative iols using the itrace aberrometer
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
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.
DIFFERENCEDIFFERENCE
Normal Accommodation – 30 Y/ONormal Accommodation – 30 Y/O Refraction MapRefraction Map
NEARNEARDISTANCEDISTANCE NEARNEAR
Normal Accommodation Normal Accommodation 3D Refraction Map (Tilted)3D Refraction Map (Tilted)
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
Normal Accommodation Normal Accommodation 3D Refraction Map (Vertical)3D Refraction Map (Vertical)
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
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
Normal Accommodation Normal Accommodation 3D Refraction Map (Vertical)3D Refraction Map (Vertical)
NEARNEAR
Mean = -4.2DMean = -4.2D3.5D 3.5D Refractive Refractive
RangeRange
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
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
Monofocal IOL Monofocal IOL 3D Refraction Map (Vertical)3D Refraction Map (Vertical)
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
Monofocal IOL Monofocal IOL 3D Refraction Map (Vertical)3D Refraction Map (Vertical)
DIFFERENCEDIFFERENCE
No Refractive No Refractive DifferenceDifference
0.6D0.6D Refractive Refractive
RangeRange
MONOFOCALMONOFOCALPSF @ 33 cm.PSF @ 33 cm.
DISTANCEDISTANCEACCOMMODATIVE ACCOMMODATIVE
EFFORTEFFORT
NO DIFFERENCE IN PSFNO DIFFERENCE IN PSF
MONOFOCALMONOFOCALImage SimulationImage Simulation
View @ 33 cm.View @ 33 cm.
DISTANCEDISTANCEACCOMMODATIVE ACCOMMODATIVE
EFFORTEFFORT
NO DIFFERENCE IN IMAGENO DIFFERENCE IN IMAGE
Pupil Size Same for Distance & NearPupil Size Same for Distance & Near
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
Pupil Size Same for Distance & NearPupil Size Same for Distance & Near
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
Tetraflex in Other Eye Tetraflex in Other Eye 3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
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
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
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
TETRAFLEXTETRAFLEXPSF @ 33 cm.PSF @ 33 cm.
DISTANCEDISTANCEACCOMMODATIVE ACCOMMODATIVE
EFFORTEFFORT
SUBSTANTIAL CHANGE IN PSFSUBSTANTIAL CHANGE IN PSF
TETRAFLEXTETRAFLEXImage SimulationImage Simulation
View @ 33 cm.View @ 33 cm.
DISTANCEDISTANCEACCOMMODATIVE ACCOMMODATIVE
EFFORTEFFORT
SUBSTANTIAL IMPROVEMENT IN NEARSUBSTANTIAL IMPROVEMENT IN NEAR
Tetraflex Accommodative IOL Tetraflex Accommodative IOL 3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
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
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
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
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
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
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
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.
Patient AB – OD CrystalensPatient AB – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-3.5D-3.5D
-3.5D-3.5D
Patient GB – OD CrystalensPatient GB – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-2.3D-2.3D
Patient GB – OS CrystalensPatient GB – OS Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
Patient RC – OD CrystalensPatient RC – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-2.3D-2.3D
-2.8D-2.8D
Patient DB – OD CrystalensPatient DB – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
Patient DB – OS CrystalensPatient DB – OS Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
Patient GF – OD CrystalensPatient GF – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-1.3D-1.3D
-1.4D-1.4D
Patient PS – OS CrystalensPatient PS – OS Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
-2.5D-2.5D
Patient ER – OD CrystalensPatient ER – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
Patient ER – OS CrystalensPatient ER – OS Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
Patient BV – OD CrystalensPatient BV – OD Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
Patient MA – OS CrystalensPatient MA – OS Crystalens3D Refraction Map3D Refraction Map
DIFFERENCEDIFFERENCE
NEARNEARDISTANCEDISTANCE
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