Rate of Corneal Collagen Crosslinking Redo in Private Practice: Risk Factors and Safety

Figure 1

A map difference showing progression after primary corneal collagen crosslinking. B represents corneal topography 6 months after primary CXL, and A shows corneal topography 12 months after primary CXL. The map difference (difference A-B) shows the progression after initial CXL with +2.5 and +3.4 D of difference between successive topographies (white circle).