Comparison of Efficacy and Safety of Contact Lens–Assisted Corneal Collagen Crosslinking and Hypoosmolar Corneal Collagen Crosslinking in Pediatric Patients With Keratoconus and Thin Corneas

PURPOSE: The aim of this study was to compare the efficacy and safety of contact lens-assisted corneal collagen crosslinking (CXL) and hypoosmolar CXL in pediatric patients with progressive keratoconus and thin corneas. METHODS: Forty eyes of 40 progressive pediatric patients with keratoconus and thin corneas were divided into two groups: the first group underwent contact lens-assisted CXL (CL group), and the second group underwent hypoosmolar riboflavin-assisted CXL (group H). Only patients younger than 18 years with thinnest corneal pachymetry