Lang PZ, et al. - Using standard protocol and accelerated protocols in patients with progressive keratoconus, authors examined 93 eyes to evaluate the relative 12-month corneal crosslinking (CXL) functional outcomes. They observed 35 eyes with standard [3 mW/cm² for 30 minutes, 5.4 J/cm² (S_3/30-CXL)], 29 eyes with accelerated with equivalent total irradiance [9 mW/cm² for 10 minutes, 5.4 J/cm² (A_9/10-CXL)], and 29 eyes with accelerated with increased total irradiance [30 mW/cm² for 4 minutes, 7.2 J/cm² (A_30/4-CXL)]. They recorded improvement in K Max, CDVA, and other variables with comparable functional consequences for each despite greater change in keratoconus indices after S_3/30-CXL with all the 3 protocols. They found overall poorer correlations between change in measured variables and CDVA. But, an association of K Mean, central keratoconus index, and anterior asphericity was noted with CDVA.