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Vienna 2018 Delegate Registration Programme Exhibition Virtual Exhibition Satellites 2018 Survey


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Corneal structural changes after sequential femtosecond laser-assisted image-guided intracorneal ring segments and corneal cross-linking in the treatment of ectatic disorders

Poster Details

First Author: A.Arteaga USA

Co Author(s):    S. Hassanaly   D. Silva   O. Lopez   J. De la Cruz           

Abstract Details


To report outcomes in eyes with intracorneal ring segments (ICRS) and subsequent collagen crosslinking (CXL) procedures for stabilization of keratoconus.


Illinois Eye and Ear Infirmary - Chicago Eye Institute. Chicago- IL


A multicenter, retrospective study of all eyes implanted with ICRS (Intacs® Oasis, CA.) that underwent subsequent CXL. Segment size implanted were between 350 and 450 microns. Preoperative and postoperative best-corrected visual acuity (BCVA), refraction, intraoperative and postoperative complications, and keratometry values were examined.


Eleven eyes of 10 patients were included in this study. All eyes first underwent ICRS implantation. Mean age at the time of CXL was 39.7±3.6 years. Mean interval time between ICRS and CXL was 36.5±11.5 months. BCVA was logMAR 0.2 (SD ±0.2) prior to ICRS implantation and logMAR 0.2(SD ±0.08) prior to CXL. Prior to CXL, mean K2 was 50.6± 4.1 D and mean K1 was 47.1 ± 3.6 D, and at last follow up time after CXL was 49.6 ± 5.3 D and 46.4± 2.9 D for K2 and K1 respectively.


Sequential implantation of femtosecond laser-assisted image-guided intracorneal ring segments followed by collagen crosslinking is safe and effective in select cases of ectatic disorders, particularly when stabilization of the condition is a primary objective.

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