Copenhagen 2016 Registration Programme Exhibitor Information Virtual Exhibition Satellite Meetings Glaucoma Day 2016 Hotel Star Alliance

10 - 14 Sept. 2016, Bella Center, Copenhagen, Denmark

This Meeting has been awarded 27 CME credits


escrs app advert yo advert

Visual, refractive and aberrometric outcomes of a new asymmetric intracorneal ring segment

Search Title by author or title

Session Details

Session Title: Presented Poster Session: Surgical Cornea

Session Date/Time: Saturday 10/09/2016 | 15:00-16:30

Paper Time: 15:40

Venue: Poster Village: Pod 3

First Author: : L.Salermo SPAIN

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

Abstract Details


To analyze the clinical results of a new concept of asymmetric 340 degrees intrastromal corneal ring segment (ICRS) for the treatment of keratoconus.


Vissum, Alicante, Spain. Division of Ophthalmology, Miguel Hernández University, Alicante, Spain.


Prospective study in which a total of 18 eyes of 15 patients with ages ranging from 16 to 51 years (mean age of 34.47 ± 8.59 years) were included. The ophthalmic examination included the following: uncorrected distance visual acuity (UDVA); best corrected distance visual acuity (CDVA); refraction; keratometric readings and anterior corneal higher order aberrations assessed with the corneal topographer (CSO, Firenze, Italy). All patients were implanted with an asymmetric 340º arc length ICRS. Tunnel creation was performed with femtosecond laser technology and the mean follow up period was 6 months.


UDVA came from preoperatively 0.18±0.25 to postoperatively 0.19 ± 0.16 and CDVA preoperatively of 0.37±0.29 that came to postoperatively 0.42±0.18. The mean refractive spherical equivalent came from preoperatively -10.38±6.23 diopters (D) to postoperatively -7.74±5.60D (p<0.01). Mean keratometric reading (KM) was 50.65±4.51D that came postoperatively to 48.08±4.36D (p<0.01). No statistically significant differences were found in aberrometric values. A slight improvement was observed in the total RMS and coma-like aberrations which pass from 12.25±8.65µm and 3.86±1.83µm, to postoperative values of 8.91±5.39µm and 3.78±1.48µm respectively (p=0.30).


The new asymmetric 340⁰ arc length ICRS significantly improve the visual, refractive and aberrometric variables in patients with keratoconus. Further improvement and customization of the segments may lead to a better and more personalized therapeutic approach.

Financial Disclosure:


Back to previous