Viability, Apoptosis, Proliferation, Activation, and Cytokine Secretion of Human Keratoconus Keratocytes after Cross-Linking

Figure 4

CD34 expression of keratoconus keratocytes 24 hours after CXL. Using riboflavin or illumination only, expression of CD34 in KC keratocytes did not change significantly compared to controls (). Twenty-four hours after CXL, CD34 expression of keratocytes also remained unchanged at both riboflavin concentrations ( and ), compared to controls.