From Longman Dictionary of Contemporary Englisheagle-eyedˌeagle-ˈeyed adjective [only before noun] NOTICEvery good at seeing or noticing things One eagle-eyed passerby noticed that the window was slightly open.
Examples from the Corpus
eagle-eyed• The error was caught by an eagle-eyed bank employee.• They needed no professional help with the evening's drinking but arose magically clear-headed and eagle-eyed for each subsequent day's golf.• Again the overall approach is Spartan in its self-denying austerity and yet has a wholly characteristic eagle-eyed intensity.• The hotel was run by an eagle-eyed old man who knew everything about all the guests.• They may be eagle-eyed or watch like a lynx.• Nobody but the kids and I knew about it, and I never got caught by the eagle-eyed press.• Two eagle-eyed reporters noticed the politician leaving a prostitute's house. 