Crosslinking for Post-LASIK Ectasia: Long-Term Results
Narrative Responses:
Purpose
To evaluate the long term results of cross-linking for the post-LASIK ectasia.
Methods
This was a retrospective study of all consecutive patients treated with corneal collagen cross-linking(CXL) for progressive ectasia after LASIK. Mean outcome measures were UCVA, BCVA, spherical and cylindrical refraction, keratometry values, and corneal thickness values, which were recorded as preoperatively and 3, 6, 12 months, and last visits (mean, 42 months) postoperatively.
Results
Twenty eyes of 14 patients (7 male, 7 female) with corneal ectasia after LASIK were included. The mean -standard deviation (SD) patient age at CXL treatment was 34.8 years (range, 25–45 years). Mean±SD follow-up was 42±7 months (range, 36–60 months). At last visit, uncorrected distance visual acuity improved (gain of ≥1 line) in 8 eyes and remained stable in 12 eyes. Corrected distance visual acuity improved in 8 eyes and remained stable in 12 eyes. At last visit, K max values decreased (decrease of ≥1 D) in 4 eyes, and remained stable in 16 eyes.
Conclusion
Corneal CXL appeared to stabilize these iatrogenically ectatic eyes for a 42 months follow up. It also appears to improve UCVA, BCVA, and K max value.