Hypo-osmolar accelerated corneal crosslinking on resultant sub-400 μm topography-guided excimer regularized keratoconus corneas.

In KC corneas thinner than 400 μm after excimer ablation, PTK epithelial removal followed by T-PRK and hypo-osmolar accelerated CXL decreases manifest astigmatism and Kmax, improves UDVA and CDVA, and halted disease progression in 97% of eyes at 12 months. These outcomes are comparable with thicker ablated corneas not requiring hypo-osmolar stromal swelling.