Correlation of Demarcation Line Depth With Medium-Term Efficacy of Different Corneal Collagen Cross-Linking Protocols in Keratoconus

Purpose:
To compare demarcation line depth (DD) and topographic changes among different corneal collagen cross-linking (CXL) protocols and to evaluate the relation of DD with medium-term efficacy of CXL in halting progression of keratoconus.
Methods:
The study included 124 patients (mean age 19 ± 4.8 years) with progressive keratoconus who underwent conventional (3 mW/cm2/30 min), accelerated (18 mW/cm2/5 min), or transepithelial (TE) CXL (3 mW/cm2/30 min) and followed up for at least 2 years. Baseline and final corneal topographic parameters and DD determined with anterior segment optical coherence tomography 1 month after CXL were compared among the protocols and the correlation between DD and topographic changes at the end of 24 months was analyzed. P

Source: Cornea - November 6, 2018 Category: Opthalmology Tags: Clinical Science Source Type: research