sharp-sighted

from WordNet (r) 3.0 (2006)

sharp-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: keenly perceptive or alert; "quick-sighted into the faults of
       the time"- Leonard Bacon [syn: {quick-sighted}, {sharp-
       sighted}, {sharp-eyed}]

from The Collaborative International Dictionary of English v.0.48

Sharp-sighted \Sharp"-sight`ed\, a.
   Having quick or acute sight; -- used literally and
   figuratively. -- {Sharp`-sight`ed*ness}, n.
   [1913 Webster]