P urpose: To determ ine the safety and efficacy of corneal collagen cross-linking (C X L ) for progressive keratoconus in patients aged betw een 9 and 14 years old. M ethods: Sixteen eyes of 11 patients (8 m ale and 3 fem ale) w ith progressive keratoconus underw ent epithelium -off C X L according to the standard D resden protocol. M ean follow -up w as 26 m onths (range, 12 to 60 m onths). P re-and postoperative exam inations included: uncorrected visual acuity (U C V A ), best spectacle-corrected visual acuity (B SC V
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