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First Author: T.Monteiro PORTUGAL
Co Author(s): P. Menéres M. Castro Neves F. Vaz
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To report results of Corneal collagen crosslinking (CXL) 12 months after treatment for corneal ectasia.
Hospital CUF Porto
Case series retrospective study, comprising eyes with progressive keratoconus or secondary corneal ectasia. All eyes were treated according to the Siena protocol with Optolink SN 089. Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), endothelial cell count (ECC), and topographic parameters were analysed at baseline and after a 6 month follow-up period.
15 eyes of 15 patients were enrolled in the study; 13 eyes with proven progressive keratoconus and two eyes with progressive corneal ectasia secondary to previous corneal refractive surgery. After 12 months, the CDVA stabilized in 13 eyes and improved in two eyes. No progression was observed in any patient after treatment, the maximum keratometry value decreased in all patients by more than 1.0 diopter (D). The endothelial cell count was maintained. We observed sterille corneal infiltrates in one patient after treatment.
Ultraviolet-A light associated with Riboflavin CXL is an efficient procedure to stabilize and improve primary or secondary corneal ectasia. Our preliminary results reinforce previous studies highlighting the efficacy and safety of the procedure.