Ten years' follow-up after intracorneal ring segment implantation for keratoconus treatment

Session Details

Session Title: Presented Poster Session: Spotlight on Cornea

Venue: Poster Village: Pod 2

First Author: : A.Vega-Estrada SPAIN

Co Author(s): :    E. Espla   A. Martinez   J. Alió                 

Abstract Details

Purpose:

To report the long term visual, refractive and keratometric outcomes of intracorneal ring segment implantation (ICRS) for keratoconus treatment.

Setting:

Vissum Innovation, Alicante. Spain

Methods:

Retrospective, consecutive, clinical study including 35 keratoconus cases mean age 35 ± 10 years that were treated with intracorneal ring segments. Visual, refractive, keratometric readings as well as explantation rate were evaluated during 10 years follow up period.

Results:

A statistically significant improvement was observed in the uncorrected visual acuity that came from 0.17 ± 0.19 to 0.53 ± 0.45 one year after the surgery (p=0.01) with no further changes in the remaining ten years (p>0.50). A reduction of the sphere and cylinder from preoperative -2.60 ± 4.68 and -3.38 ± 1.93 to postoperative ten years -0.70 ± 1.71 -2.25 ± 1.80 respectively was also found. A significant reduction in the mean keratometry was observed from 49.49 ± 4.67 to 46.76 ± 2.73 at ten years (p<0.05). Three cases were explanted during the ten years of follow up.

Conclusions:

Intracorneal ring segment for keratoconus treatment provides stable visual, refractive and keratometric outcomes after ten years of follow up. An explantation rate of around 10% might be expected 10 years after the procedure.

Financial Disclosure:

None