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Background
We aimed to determine the long‐term outcomes of epithelium‐off cross‐linking (CXL) in keratoconus patients.
Methods
An observational registry study from 41 centres across 5 countries was carried out. Primary outcomes included the mean change in visual acuity (VA), Kmax, K2, and thinnest corneal thickness (TCT) at 1–5 years. Secondary outcomes included the percentage of eyes with worsening,...
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