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Vienna 2018 Delegate Registration Programme Exhibition Virtual Exhibition Satellites 2018 Survey


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Safety and efficacy of intrastromal corneal ring segment implantation in paediatric keratoconus

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Session Details

Session Title: Surgical Cornea

Session Date/Time: Tuesday 25/09/2018 | 16:30-18:00

Paper Time: 17:06

Venue: Room A3, Podium 3

First Author: : C.Lisa SPAIN

Co Author(s): :    L. Fernandez-Vega Cueto   D. Madrid-Costa   J. Merayo   J. Alfonso           

Abstract Details


To evaluate the safety and visual outcome of intracorneal ring segment (ICRS) implantation in pediatric keratoconus patients.


Instituto Universitario Fernandez-Vega, Oviedo, Spain


This retrospective study included pediatric patients (aged ≤18 years) with keratoconus that underwent ICRS implantation. ICRS were inserted under topical anesthesia after creating a corneal tunnel with a femtosecond laser. Uncorrected (UDVA) and corrected (CDVA) distance visual acuity, and residual refractive errors were recorded preoperatively and at 6 months, 1 year, 3 years, and 5 years postoperatively.


112 eyes of 82 patients aged 9-18 years received ICRS. Follow-up times ranged from 6 months to 5 years after surgery. At the 6-month follow-up all eyes were evaluated; at the 1-year, 3-year, and 5-year follow-up 88, 62, and 20 eyes were evaluated, respectively. At the 6-month follow-up, mean CDVA and UDVA in comparison to preoperative levels improved significantly (P < 0.001). A significant decreased in spherical equivalent was also noted after ICRS implantation (P = 0.003). At the 1-year, 3-year, and 5-year follow-up visual acuity and spherical equivalent values remained stable in comparison to the 6-month follow-up.


ICRS implantation is a safe and effective procedure for visual rehabilitation in children with keratoconus.

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