Corneal remodelling and refractive changes in adolescent patients with keratoconus after intracorneal ring segments implantation

Session Details

Session Title: Presented Poster Session: Spotlight on Cornea

Venue: Poster Village: Pod 2

First Author: : M.Hernandez Diaz SPAIN

Co Author(s): :    E. Alfonso   M. Roig   E. Fernandez   R. Araujo   S. Montolio   C. Peris        

Abstract Details

Purpose:

To analyse the corneal shape and refractive changes in adolescent patients with keratoconus before and after the implantation of intracorneal ring segments (ICRS)

Setting:

Fisabio Oftalmologia Medica (FOM). Valencia. Spain.

Methods:

This is a case series of 61 eyes from 41 patients between 13 and 18 years old, with progressive keratoconus and contact lens intolerance undergoing Ferrara ICRS implantation. Femtosecond laser (IntraLase®) was used to create the intrastromal channel. Keratometric values (K1, K2, Km and Kmax) with Pentacam®, uncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA), refractive error (sphere, refractive astigmatism and spherical equivalent (SE))  and pachymetry (at apex and thinnest point) with Pentacam® were evaluated before surgery and at 1, 6 and 12  months of follow-up after surgery.

Results:

All keratometric values experienced a statistically significant (SS) decrease of 2 to 4D at one month postoperatively and at 1-year follow-up. There was a SS improvement in UCDVA and BCDVA  at one month after surgery with continuous improvement at 1 year of follow-up. Refractive and topographic astigmatism experienced a SS reduction in the first-month visit, and at one year. There were not SS changes in either the sphere or SE in the follow-up visits. Apex and thinnest point values of pachymetry with Pentacam®, remained stable in the follow-up visits, with no SS changes throughout the study.

Conclusions:

According to our results, ICRS implantation is a safe and effective treatment for improving the refractive and topographic values at one year follow up in adolescent patients with keratoconus.

Financial Disclosure:

None