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Myopic and Astigmatic Laser in situ Keratomileusis Using a Ray Tracing-Based Treatment Algorithm with a Personalized
Ronald R Krueger1, Vance Thompson2, Kerry Solomon3
1Department of Ophthalmology and Visual Sciences, Truhlsen Eye Institute, University of Nebraska Medical Center, Omaha, NE, USA.
Clinical Ophthalmology (Auckland, N.Z.)
|March 23, 2026
Summary
Ray tracing-guided LASIK surgery effectively corrects myopia and astigmatism, offering stable vision and high patient satisfaction. This advanced laser vision correction procedure demonstrates excellent safety and efficacy for improved visual outcomes.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Biomedical Engineering
Background:
- Laser-assisted in situ keratomileusis (LASIK) is a common refractive surgery for myopia.
- Personalized ablation profiles aim to improve refractive outcomes.
- Ray tracing algorithms offer precise modeling for customized treatments.
Purpose of the Study:
- To evaluate the safety and efficacy of ray tracing-guided LASIK for myopia correction.
- To assess outcomes in patients with and without astigmatism.
- To analyze visual acuity, refractive stability, and patient-reported satisfaction.
Main Methods:
- Prospective study of adults with myopia (up to -10.00 D) and optional astigmatism.
- Personalized 3D virtual eye models and ablation profiles using ray tracing.
- Wavelight plus LASIK treatment with follow-up up to 12 months.
Main Results:
- 99.4% achieved refractive stability within 3 months; 92.0% within 0.50 D of emmetropia.
- 94.4% achieved uncorrected distance visual acuity of 20/20 or better at 12 months.
- No loss of ≥2 lines of corrected distance visual acuity; no serious adverse events reported. Dry eye symptoms improved.
Conclusions:
- Ray tracing-guided LASIK is safe and effective for myopia correction, with or without astigmatism.
- The procedure yields stable visual outcomes and high patient satisfaction.
- Personalized ablation profiles enhance refractive surgery results.
