Having great visual acuity, especially the ability to see at a distance.(adjective)
Describing someone who is perceptive.(adjective)
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Use "eagle-eyed" in a sentence
"He blamed his editors "who should have picked it up", declared it to be the "best question I've had in years", called the eagle-eyed reader up to the stage and gave the boy £20."
"During recess she was eagle-eyed, paying particularly close attention to the most vulnerable students."
"What's more, eagle-eyed observers had been finding evidence of fraudulent foreclosure activity as far back as 2003 we'll make some more information available on that score shortly."