Long-term outcomes of intrastromal corneal ring segment implantation for post-LASIK ectasia

•Intrastromal corneal ring segment (ICRS) is a popular treatment option for keratoconus and keratoectasia.•The study gives long-term results of ICRS implantation for post-LASIK ectasia.•ICRS implantation for corneal ectasia after LASIK provided satisfactory visual, refractive and topographic outcomes.

PurposeTo report the long-term results of intrastromal corneal ring segments (ICRS) for postoperative LASIK ectasia.MethodIn this retrospective interventional cases series, 8 eyes of 6 patients who underwent femtosecond laser-assisted ICRS implantation for post-LASIK ectasia were enrolled. Main outcome measures were uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), spherical equivalent refraction, and average keratometry (Kavg) values were assessed.ResultsMean ± SD follow-up was 67 ± 21 months (range, 36–96 months). The mean UDVA, CDVA, spherical equivalent refraction, and Kavg values were significantly improved at all postoperative visits when compared to baseline values. No serious complications were observed during follow-up.ConclusionOur long-term findings showed that ICRS yielded improvements in visual acuity, refractive status, and keratometric values without any progression in cases with post-LASIK corneal ectasia.