the maximal pupillary dilation after administration of 1 % prodrug ( mean + s.d . = 4.4 + 0.5 mm , n = 12 ) was slightly greater than after administration of phenylephrine 10 % ( mean + s.d . = 3.9 + 0.8 mm , n = 12 ) .
C0026961
pupillary dilation
C0031469
phenylephrine