Source : WordNet®

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