quick-sighted

quick-sighted (http://definr.com/quick-sighted)

     adj 1: having very keen vision; "quick-sighted as a cat" [syn: argus-eyed,
             hawk-eyed, keen-sighted, lynx-eyed, sharp-eyed,
             sharp-sighted]
     2: keenly perceptive or alert; "quick-sighted into the faults
        of the time"- Leonard Bacon [syn: sharp-sighted, sharp-eyed]