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Visual and Refractive Outcomes Across Low, Medium, and Large Cyclorotation Angles in Myopic LASIK With Automated
Dror Ben Ephraim Noyman1,2, Margarita Safir3,4, Adir Sommer1,2
1Department of Ophthalmology, Rambam Health Care Campus, Haifa, Israel.
Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|August 10, 2026
Summary
Cyclorotation magnitude does not significantly affect visual or refractive outcomes in myopic laser in situ keratomileusis (LASIK). Modern laser technology minimizes the clinical impact of cyclorotation, suggesting other factors influence surgical planning.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Corneal Surgery
Background:
- Cyclorotation is a common challenge in laser refractive surgery.
- Automated cyclorotation compensation aims to improve surgical accuracy.
- Understanding the impact of cyclorotation magnitude on outcomes is crucial.
Purpose of the Study:
- To evaluate visual and refractive outcomes in myopic LASIK.
- To assess the effect of varying cyclorotation magnitudes.
- To determine the efficacy of automated cyclorotation compensation.
Main Methods:
- Retrospective comparative study of 6,920 eyes undergoing myopic LASIK (2012-2023).
- Patients grouped by cyclorotation angle magnitude.
- Analysis included efficacy/safety indices and Alpins vector analysis.
Main Results:
- No significant differences in visual acuity, refractive outcomes, or Alpins vectors across cyclorotation groups.
- Automated compensation showed no significant impact of cyclorotation magnitude.
- Age, ablation depth, and axis had confounding effects on some vectors.
Conclusions:
- Cyclorotation magnitude has limited impact on myopic LASIK outcomes with modern lasers.
- Other factors may be more significant in surgical planning.
- Automated compensation appears effective in mitigating cyclorotation effects.
