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Predictors for Retreatment Following Laser-Assisted in Situ Keratomileusis for High Myopia
Waseem Nasser1,2,3, Adir Sommer1,2,4, Dror Ben Ephraim Noyman1,2,4
1Department of Ophthalmology, Rambam Health Care Campus, Haifa, Israel.
Journal of Cataract and Refractive Surgery
|August 13, 2026
Summary
High myopia patients needing LASIK retreatment often have higher baseline astigmatism and older laser technology. Optimizing patient selection and using modern excimer lasers can reduce the need for repeat procedures.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Corneal Surgery
Background:
- Laser-assisted in situ keratomileusis (LASIK) is a common procedure for correcting myopia.
- Retreatment may be necessary to achieve desired visual outcomes.
- Identifying predictors for retreatment is crucial for improving patient selection and surgical planning.
Purpose of the Study:
- To identify independent risk factors associated with retreatment after LASIK in eyes with high myopia (≥ 6 Diopters).
Main Methods:
- A retrospective comparative study analyzed data from 2100 eyes treated between 2000 and 2022.
- Eyes were categorized based on retreatment status.
- Generalized estimating equations (GEE) logistic regression identified independent predictors of retreatment.
Main Results:
- Eyes requiring retreatment had higher baseline cylinder (<-1.0 D) and shorter contact lens-free intervals.
- Intraoperatively, retreatment cases showed greater ablation depth and different optical zone sizes.
- Use of the older EX200 laser platform and earlier surgical years were significant factors.
- Baseline cylinder < -1.0 D (OR 2.208) and EX200 laser use (OR 4.776) were independent predictors.
Conclusions:
- Higher baseline refractive cylinder and the use of older laser technology (EX200) are independently associated with LASIK retreatment in high myopia.
- Improving patient selection criteria and utilizing contemporary laser platforms can potentially minimize the need for repeat LASIK procedures.
