lynx-eyed vs argus-eyed

lynx-eyed and argus-eyed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
lynx-eyed	No	Yes	No	No
argus-eyed	No	Yes	No	No

As adjectives, lynx-eyed and argus-eyed are synonyms defined as:

Other synonyms of lynx-eyed include hawk-eyed, keen-sighted, quick-sighted, sharp-eyed, sharp-sighted.

lynx-eyed (adjective)	argus-eyed (adjective)
having very keen vision	carefully observant or attentive; on the lookout for possible danger
	having very keen vision