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Early outcomes with the KeraRing 355° in patients with keratoconus

Poster Details

First Author: L.Cadarso SPAIN

Co Author(s):    D. Velazquez-Villoria   A. Velazquez-Villoria   L. Cadarso-Suarez        

Abstract Details


To evaluate early (1-month) outcomes following femtosecond laser-assisted implantation of a new intrastromal corneal ring (ICR) arc length in patients with keratoconus.


Clinica Cadarso, Vigo, Spain. Clinica Villoria, Pontevedra, Spain.


This small case series study included 4 patients (mean age, 27.75 years [range, 17 to 37 years]) with central keratoconus who underwent femtosecond laser-assisted implantation of the 355° Keraring ICR (Mediphacos Ltda, Belo Horizonte, Brazil). Uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), and keratometry were evaluated preoperatively, and at 1 month postoperatively.


At the 1-month follow-up visit, mean UCVA had improved from 0.075 preoperatively to 0.188, while mean BCVA improved from 0.40 to 0.55. There was also a reduction in mean spherical equivalent (-5.38 postoperatively versus -10.88 preoperatively. An improvement in average keratometry values and high order aberrations was also observed.


Implantation of the 355° Keraring ICR effected an improvement in measures of visual acuity and helped to regularize the central cornea in this small series of keratoconus patients. FINANCIAL INTEREST: NONE

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