Latest research from the Oinops Group at Hour 25 indicates Athena can see in the dark! http://hour25.heroesx.chs.harvard.edu/?p=6152
So the theory is that Athena of the “flashing-eyes” has “tapetum lucidum” like deer in the ditch on a dark night and consequently notices that the water is deep blue at Odyssey 2.420. So at least metaphorically, she can see in the dark.
I never thought about this before. It would explain how Zeus found the magic herb that would have made the giants invulnerable when he banished the Hyperionides from the sky. Zeus could see in the dark and the Giants couldn’t . (Pseudo-Apollodorus, Bibliotheca 1. 34 – 38) It explains how the Muses saw events at night, like the Doloneia and could inform the poets. It explains how Hermes (in his hymn) so successful stole Apollo’s cattle at night while only “Selene's soft light shone down”.
I will have to think on this