as far as the eye can/could see
US /æz fɑr æz ðə aɪ kæn/kʊd siː/
UK /æz fɑr æz ðə aɪ kæn/kʊd siː/

1.
a perdita d'occhio, fin dove l'occhio può vedere
over a very large area; as far as the horizon
:
•
The desert stretched out as far as the eye could see.
Il deserto si estendeva a perdita d'occhio.
•
From the top of the hill, we could see fields of sunflowers as far as the eye could see.
Dalla cima della collina, potevamo vedere campi di girasoli a perdita d'occhio.