Table 1.
Eye model used for T-IOL designs and simulations.
Table 2.
Axial position of the T-IOLs according to Castro et al. [30].
Fig 1.
A) Ideal position, B) T-IOL with rotation and C) with positive axial shift.
Fig 2.
A) Percentage of effectiveness loss obtained by the three methods. B) Axis degrees for a minus cylinder correction as a function of the T-IOL rotation. These results are specific to the SEQ24_CYL3.00 eye model. Rotation was carried out for both clockwise (positive) and counterclockwise (negative).
Fig 3.
Residual cylinder at corneal plane as a function of T-IOL rotation for each eye model and both pupil diameters.
The red zone indicates the clinically relevant level of residual cylinder (<0.50 D) [39].
Fig 4.
A) Residual cylinder at corneal plane as a function of axial shift for a SEQ24 and the four T-IOL cylinder values. B) Residual M as a function of axial shift for a CYL +3.00 D and the four SEQ values. Results are presented for two pupil diameters. The red zone indicates the clinically relevant level of residual cylinder <0.50D [39]. The value 0.00 on the X-axis represents the position of the T-IOL where emmetropia is achieved. Negative values represent positions in front of the position to achieve the emmetropia.
Fig 5.
A) Residual cylinder as a percentage of preoperative magnitude resulting from axial shift and rotation B) Axis of residual cylinder due to axial rotation and axial shift. These results are for the SEQ24_CYL3.00 eye model.
Fig 6.
VS as a function of rotation for a SEQ24 with four values of CYL.
Fig 7.
Simulated retinal images as a function of rotation for a SEQ24 with four values of CYL and different entrance pupil diameters: A) 3.34 mm and B) 4.44 mm. The “no toric correction” is shown for each cylinder in the last column. The VS value of each simulated image is shown at the top of the image. The line of letters represents 0.20 logMAR visual acuity.
Fig 8.
VS as a function of axial shift and rotation for a SEQ 24.00 D with four values of CYL and different entrance pupil diameters.
Fig 9.
Simulated retinal images as a function of rotation for a SEQ24_CYL3.00 eye model and two entrance pupil diameters: A) 3.34 mm and B) 4.44 mm. The VS value of each simulated image is shown at the top of the image. The line of letters represents 0.2 logMAR visual acuity.