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Intracorneal ring Ferrara 210 arc in advanced keratoconus treatment

Poster Details

First Author: D.Horodynska POLAND

Co Author(s):                        

Abstract Details


To present the results of implantation of FERRARA ring 210 arc, 250 um thickness, 5 mm optic zone in advanced keratoconus.


Medical Center "MAVIT", Warsaw, Poland.


FERRARA ring - 210 arc, 250 um thickness, 5 mm optical zone - was implanted in 5 eyes with advanced keratoconus, stage 3/4 according to Amsler-Krumeich scale. In all 5 eyes Vogt's striae were present. The 360 degrees intracorneal channels were made with femtosecond laser, Visumax, under topic anesthesia. Preoperative UCVA was from 0,02 to 0,3; preoperative BCVA from 0,3 to 0,5; spherical correction from +0,25D to -7,75D; cylindrical correction from -1,5D to 7,5D. Maximal anterior surface curvature was from 60,2D to 70,9D; minimal pachymetry from 408um to 483um. Operations were performed between June 2017 and February 2018.


In all patients uncorrected and corrected visual acuity was improved. In all patients flattening of anterior curvature was observed. In all patients Vogt's striae disappeared.


The femtosecond laser -FERRARA 210 arc intracorneal ring implantation is a very good method to improve vision in eyes with advanced keratoconus. This method can postpone the necessity of corneal transplantation in advanced keratoconus.

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