Ray tracing optimization : a new method for intraocular lens power calculation in regular and irregular corneas
- Author
- Pablo Perez Merino (UGent) , Jaime Aramberri, Andrés Felipe Vasquez Quintero (UGent) and Jos J. Rozema
- Organization
- Abstract
- To develop a novel algorithm based on ray tracing, simulated visual performance and through-focus optimization for an accurate intraocular lens (IOL) power calculation. Custom-developed algorithms for ray tracing optimization (RTO) were used to combine the natural corneal higher-order aberrations (HOAs) with multiple sphero-cylindrical corrections in 210 higher order statistical eye models for developing keratoconus. The magnitude of defocus and astigmatism producing the maximum Visual Strehl was considered as the optimal sphero-cylindrical target for IOL power calculation. Corneal astigmatism and the RMS HOAs ranged from - 0.64 +/- 0.35D and 0.10 +/- 0.04 mu m (0-months) to - 3.15 +/- 1.38D and 0.82 +/- 0.47 mu m (120-months). Defocus and astigmatism target was close to neutral for eyes with low amount of HOAs (0 and 12-months), where 91.66% of eyes agreed within +/- 0.50D in IOL power calculation (RTO vs. SRK/T). However, corneas with higher amounts of HOAs presented greater visual improvement with an optimized target. In these eyes (24- to 120-months), only 18.05% of eyes agreed within +/- 0.50D (RTO vs. SRK/T). The power difference exceeded 3D in 42.2% while the cylinder required adjustments larger than 3D in 18.4% of the cases. Certain amounts of lower and HOAs may interact favourably to improve visual performance, shifting therefore the refractive target for IOL power calculation.
- Keywords
- IMAGE QUALITY, RETINAL IMAGE, REPEATABILITY, ACCURACY, ASTIGMATISM, AGREEMENT, OUTCOMES, SYSTEMS, PREDICTION, ABERRATION
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01GW6W5X55VZ0YHD2K9YSDQWDF
- MLA
- Perez Merino, Pablo, et al. “Ray Tracing Optimization : A New Method for Intraocular Lens Power Calculation in Regular and Irregular Corneas.” SCIENTIFIC REPORTS, vol. 13, no. 1, 2023, doi:10.1038/s41598-023-31525-8.
- APA
- Perez Merino, P., Aramberri, J., Vasquez Quintero, A. F., & Rozema, J. J. (2023). Ray tracing optimization : a new method for intraocular lens power calculation in regular and irregular corneas. SCIENTIFIC REPORTS, 13(1). https://doi.org/10.1038/s41598-023-31525-8
- Chicago author-date
- Perez Merino, Pablo, Jaime Aramberri, Andrés Felipe Vasquez Quintero, and Jos J. Rozema. 2023. “Ray Tracing Optimization : A New Method for Intraocular Lens Power Calculation in Regular and Irregular Corneas.” SCIENTIFIC REPORTS 13 (1). https://doi.org/10.1038/s41598-023-31525-8.
- Chicago author-date (all authors)
- Perez Merino, Pablo, Jaime Aramberri, Andrés Felipe Vasquez Quintero, and Jos J. Rozema. 2023. “Ray Tracing Optimization : A New Method for Intraocular Lens Power Calculation in Regular and Irregular Corneas.” SCIENTIFIC REPORTS 13 (1). doi:10.1038/s41598-023-31525-8.
- Vancouver
- 1.Perez Merino P, Aramberri J, Vasquez Quintero AF, Rozema JJ. Ray tracing optimization : a new method for intraocular lens power calculation in regular and irregular corneas. SCIENTIFIC REPORTS. 2023;13(1).
- IEEE
- [1]P. Perez Merino, J. Aramberri, A. F. Vasquez Quintero, and J. J. Rozema, “Ray tracing optimization : a new method for intraocular lens power calculation in regular and irregular corneas,” SCIENTIFIC REPORTS, vol. 13, no. 1, 2023.
@article{01GW6W5X55VZ0YHD2K9YSDQWDF, abstract = {{To develop a novel algorithm based on ray tracing, simulated visual performance and through-focus optimization for an accurate intraocular lens (IOL) power calculation. Custom-developed algorithms for ray tracing optimization (RTO) were used to combine the natural corneal higher-order aberrations (HOAs) with multiple sphero-cylindrical corrections in 210 higher order statistical eye models for developing keratoconus. The magnitude of defocus and astigmatism producing the maximum Visual Strehl was considered as the optimal sphero-cylindrical target for IOL power calculation. Corneal astigmatism and the RMS HOAs ranged from - 0.64 +/- 0.35D and 0.10 +/- 0.04 mu m (0-months) to - 3.15 +/- 1.38D and 0.82 +/- 0.47 mu m (120-months). Defocus and astigmatism target was close to neutral for eyes with low amount of HOAs (0 and 12-months), where 91.66% of eyes agreed within +/- 0.50D in IOL power calculation (RTO vs. SRK/T). However, corneas with higher amounts of HOAs presented greater visual improvement with an optimized target. In these eyes (24- to 120-months), only 18.05% of eyes agreed within +/- 0.50D (RTO vs. SRK/T). The power difference exceeded 3D in 42.2% while the cylinder required adjustments larger than 3D in 18.4% of the cases. Certain amounts of lower and HOAs may interact favourably to improve visual performance, shifting therefore the refractive target for IOL power calculation.}}, articleno = {{4555}}, author = {{Perez Merino, Pablo and Aramberri, Jaime and Vasquez Quintero, Andrés Felipe and Rozema, Jos J.}}, issn = {{2045-2322}}, journal = {{SCIENTIFIC REPORTS}}, keywords = {{IMAGE QUALITY,RETINAL IMAGE,REPEATABILITY,ACCURACY,ASTIGMATISM,AGREEMENT,OUTCOMES,SYSTEMS,PREDICTION,ABERRATION}}, language = {{eng}}, number = {{1}}, pages = {{11}}, title = {{Ray tracing optimization : a new method for intraocular lens power calculation in regular and irregular corneas}}, url = {{http://doi.org/10.1038/s41598-023-31525-8}}, volume = {{13}}, year = {{2023}}, }
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