eagle eye
US /ˈiː.ɡəl ˌaɪ/
UK /ˈiː.ɡəl ˌaɪ/
1.
a keen and watchful eye; excellent powers of observation
:
•
The security guard kept an eagle eye on the suspicious package.
•
With her eagle eye, she spotted the tiny flaw in the fabric.
a keen and watchful eye; excellent powers of observation