Photorefractive Keratectomy in Keratoconus: Long-Term Outcomes from a Pre-Cross-Linking Era Cohort.
PURPOSE To describe long-term visual, refractive, and topographic outcomes after photorefractive keratectomy (PRK) in keratoconus patients treated before corneal cross-linking (CXL) became available. SETTING Single private ophthalmic center in Bogotá, Colombia. DESIGN Retrospective observational study. METHODS 1,...