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Objective Rotational Analysis of EVO Toric ICLs Using Infrared Retinal Retroillumination Imaging
Antonio Cano-Ortiz1,2, Álvaro Sánchez-Ventosa1, Timoteo González-Cruces1
1Department of Anterior Segment, Cornea and Refractive Surgery, Hospital La Arruzafa, 14012 Córdoba, Spain.
Journal of Clinical Medicine
|May 14, 2025
Summary
Toric EVO implantable collamer lenses (ICLs) demonstrate excellent rotational stability and refractive predictability. These results confirm their safety and efficacy for improving visual outcomes in patients with astigmatism.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Biomedical Engineering
Background:
- Toric EVO implantable collamer lenses (ICLs) are used for astigmatism correction.
- Evaluating their rotational stability and visual outcomes is crucial for clinical application.
Purpose of the Study:
- To assess the rotational stability, refractive predictability, and visual outcomes of toric EVO ICLs.
- To utilize automated infrared retinal retroillumination imaging for objective evaluation.
Main Methods:
- Prospective longitudinal study involving preoperative and postoperative assessments.
- Included visual acuity, refraction, corneal topography, and anterior segment OCT.
- Employed digital centration techniques for implantation and alignment.
Main Results:
- High rotational stability: 72% <5° rotation, 96% <10° at 1 month.
- Refractive predictability was high with a correction index (CI) of 0.96.
- Lens rotation showed minimal impact on uncorrected distance visual acuity (UDVA).
Conclusions:
- Toric EVO ICLs offer significant rotational stability and refractive accuracy.
- Precise implantation is key, with minimal influence of rotation on visual results.
- The procedure is effective and safe for correcting astigmatism.
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