Posters

Implantation of a new model of intrastromal corneal ring segment by femtosecond laser for the correction of keratoconus

Poster Details

First Author: K.Mojica De León DOMINICAN REPUBLIC

Co Author(s):    L. Izquierdo   M. Quiroz   M. Henriquez              

Abstract Details

Purpose:

To evaluate visual, refractive, aberrometric and topographic results in eyes with keratoconus after implantation of intracorneal ring (ICRS) (Keraring NK) using the femtosecond.

Setting:

Research Department, Oftalmosalud Institute of Eyes, Lima, Peru

Methods:

A prospective study of case series of patients with keratoconus was performed. We evaluated 1 5 eyes with keratoconus grade 1 and grade 2, central or asymmetric. Inclusion criteria were clear corneas and corneal thickness over 400 m at the incision site and Kmax & <60D according Pentacam (Oculus OptikgerateGmbH). The rings were implanted through tunnels created with a femtosecond laser (Ziemer FEMTO LDV Z8) at 75% depth. A preoperative, and postoperative , evaluation was performed at 3 , 6, 9, and 12 months.

Results:

Thirteen eyes were evaluated. There was improvement in the UCVA 0. 50 LogMAR at 3 months, 0.53 at 12 months, with decreases for both 2.02 sphere at 3 months, 1.46 at 12 months. The cylinder decreased, from - 2. 21 D at 3 months, 1.67 at 12 months. A decrease was found in the EE of - 3.11 D at 3 months, 2.29 at 12 months . The post Km was reduced 2.97 D and Kmax decreased 2.72 D at 12 months. The posterior corneal asphericity decreases 0.48 ± 0.20 and the vertical coma was reduced -1.02 at 12 month.

Conclusions:

The ICRS Keraring NK showed significant improvement in visual, topographic and aberrometric acuity in patients with keratoconus.

Financial Disclosure:

None