as far as the eye can see

Prepositional phrase

so long or vast as to extend beyond one's field of view

Japanese Meaning

目の届く限り / 視界に及ぶ範囲 / 果てしなく広がる

Wildflowers carpeted the valley as far as the eye can see, painting it in reds and golds.

野の花が谷を埋め尽くし、目に見える限り赤や金色に染まっていた。

Sense（1）

so long or vast as to extend beyond one's field of view