Ten-year follow-up of 360 degrees intrastromal corneal rings for myopia.

Purpose: To determine the safety, efficacy, and stability of intrastromal corneal rings 10 years after placement for myopia.

Methods: Ten eyes with myopia treated with the placement of 360 degrees complete intrastromal corneal rings with the ends sutured together were evaluated at 10-year follow-up for the following: uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), manifest refraction spherical equivalent (MRSE), induced manifest refractive cylinder, keratometry readings, slit-lamp findings, and ultrasound central pachymetry. Ten-year data were compared to 1-year results to assess visual stability over time.

Intrastromal corneal ring implantation (360 degrees ring) for myopia: a 5-year follow-up.

Purpose: Stability of correction is a major factor for successful refractive surgery. Intrastromal corneal rings were placed for the correction of low to moderate myopia beginning 10 years ago. The purpose of this study was to evaluate findings in patients 5 years after ring placement and to compare these findings with 1-year results to assess the stability of effect.