In vivo confocal microscopy (IVCM) after continuous light accelerated crosslinking showed keratocytes apoptosis until 175 μm (up left (a)), an uneven demarcation line is well detectable with spectral domain corneal OCT showing hyperreflective corneal tissue (up, white arrow (b)); the demarcation line was also visible at slit lamp one month after treatment (up right, white arrow (c)). In vivo confocal microscopy (IVCM) after pulsed light accelerated crosslinking showed keratocytes apoptosis until 200 μm (down left (a)); a deeper demarcation line is well detectable with spectral domain corneal OCT showing hyperreflective corneal tissue (down, white arrow (b)); the demarcation line was also visible at slit lamp one month after treatment (down right, white arrow (c)).
