Official ESCRS | European Society of Cataract & Refractive Surgeons
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


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Evaluation of femtosecond laser-assisted 320º arc intracorneal segment in managing keratoconus

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Session Details

Session Title: Keratoconus and Phakic IOLs

Session Date/Time: Monday 12/09/2016 | 16:30-18:30

Paper Time: 16:30

Venue: Hall C4

First Author: : A.Lotfy EGYPT

Co Author(s): :    A. Abdelrahman Elsayed   A. Samir                 

Abstract Details


To report the outcomes after the femtoseconed laser assisted implantation of Keraring 320º intrastromal corneal ring for the treatment of keratoconus.


Alpha vision center, Zagazig, Egypt


This study included 14 eyes of 11 patients (mean age, 24 ± 3.4 years) with keratoconus who underwent ICR implantation (Keraring 320°) using femtoseoned laser (Visumax, ZEISS, Germany) The main outcomes measures included: Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), manifest refraction and keratometry readings. The mean postoperative follow-up was 12 months.


At the 12th month follow-up visit, there was a statistically significant reduction in the mean spherical equivalent refractive error (-1.35 ± 1.87 D postoperative versus -5.46± 2.55 D preoperative, p=0.001).The mean UDVA 0.1 ± 0.05 preoperatively to 0.3± 0.1 postoperatively (p=0.001), while mean CDVA improved from 0.3 ± 0.15 to 0.6± 0.15, p=0.001). The mean sphere and cylinder of manifest refraction decreased significantly by 3.75 and 3.25 diopter (D) respectively (p< 0.001).Additionally, the mean K reading decreased by 5.11 D (from 49.74 D to 44.63 D, p=0.001). The majority of patients were satisfied with Keraring 320º implant. No intraoperative and postoperative complications were demonstrated in this series of patients.


The outcomes of this study show that the ICRS (KeraRing 320º) implantation using femtoseconed laser provides an effective method for managing keratoconus.

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