For quite some time I let myself get a bit side-tracked regarding this problem. Pretty much the only things that you read about this WRT cycling talks about managing "sweat arriving from above" - yielding Halo, Sweat Gutr, etc solutions.
I simply sweat a whole bunch in a partial circle starting below my eyes and extending around and maybe slightly above the outside of both eyes. How many others reading this thread encounter this (or equally useful - how many do not).
Thanks.
dave