Barcelona 2015 Programme Registration Glaucoma Day 2015 Exhibition Virtual Exhibition Satellite Meetings Hotel Booking Star Alliance

Take a look inside the London 2014 Congress


Then register to join us
in Barcelona!

Long term outcomes of intracorneal ring segments implantation for the treatment of keratoconus in stable and progressive cases

Search Abstracts by author or title
(results will display both Free Papers & Poster)

Session Details

Session Title: Cornea - Surgical III

Session Date/Time: Sunday 06/09/2015 | 14:15-16:15

Paper Time: 15:45

Venue: Room 16

First Author: : A.Vega Estrada SPAIN

Co Author(s): :    J. Alio   P. Sanz-Diez                 

Abstract Details


To analyze the long-term visual, refractive and topographic stability of intracorneal ring segments (ICRS) implantation in patients with keratoconus.


Vissum Corporaci├│n Oftalmol├│gica. Alicante, Spain


Retrospective, comparative, clinical study including 69 keratoconic eyes divided in two grups: group a): stable cases, patients with no significant changes in visual, refractive and topographic variables during the 12 months previous to the surgery; and group b): progressive cases, patients with an increase in at least: 1 line in the corrected vision (CDVA), 2 diopters (D) in the spherical equivalent (SE) or 1 D in the mean keratometry (KM), during the 12 months previous to ICRS (Keraring and Intacs) implantation. The visual, refractive and topographic changes were evaluated during a period of 5 years.


A significantly improvement of CDVA, SE and KM were found after 6 months in both groups (p<0.05). In group a, five years after the surgical procedure these parameters remained unchanged (p= 0.31). A slight regression of 0.97 D was observed in KM between 6 months and 5 years. In group b, a worsening of the visual and refractive variables was observed during the follow-up. A regression of 3,36 D was found in the KM when comparing the results of six months and the last visit at five years.


ICRS implantation provided long term improvement on the visual, refractive and topographic status in patients with stable keratoconus. Nevertheless, this procedure does not have a significant influence in those cases with progressive form of the disease.

Financial Interest:


Back to previous