WordNet (r) 3.0 (2006):
keen-sighted adj 1: having very keen vision; "quick-sighted as a cat" [syn: argus-eyed, hawk-eyed, keen-sighted, lynx-eyed, quick-sighted, sharp-eyed, sharp-sighted] 2: capable of seeing to a great distance [syn: eagle-eyed, keen-sighted, farseeing, longsighted]