Single or paired corneal ring segments crosslinking reduce cylinder in keratoconus

Single and paired intrastromal corneal ring segments combined with corneal cross-linking improved visual acuity and reduced astigmatism in eyes with keratconus, according to a study.Investigators retrospectively evaluated 85 eyes of 74 patients with keratoconus. Paired Intacs intracorneal ring segments (Addition Technology) were implanted in 47 eyes of 40 patients; single segments were implanted in 38 eyes of 34 patients.

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