Intracorneal ring segments implantation followed by same-day photorefractive keratectomy and corneal collagen cross-linking in keratoconus.

PURPOSE: To evaluate the efficacy of intrastromal corneal ring segments implantation followed by same-day photorefractive keratectomy (PRK) and ultraviolet-A/riboflavin collagen cross-linking (CXL) in patients with keratoconus.

METHODS

Four patients (five eyes) were included in the study. All patients first underwent femtosecond laser-enabled placement of intracorneal ring segments (Intacs, Addition Technology). Uncorrected (UDVA) and corrected distance visual acuity (CDVA) and keratometry readings remained stable for 6 months. Same-day PRK and CXL were subsequently performed in all patients.

RESULTS

Six months after Intacs plus PRK/CXL, significant improvements were noted for UDVA, CDVA, spherical equivalent refraction, keratometry, and total aberrations. No patient lost lines of CDVA or developed haze.

CONCLUSIONS

The combination of intracorneal ring segments implantation followed by sequential same-day PRK/CXL may be a reasonable option for improving visual acuity in select patients with keratoconus.