expression
as far as the eye can see; as far as the eye can reach
A set phrase describing the entire visible area; often used in literary or descriptive contexts.
目の届く限り、一面の花畑が広がっていた。
As far as the eye could see, a field of flowers stretched out.
山頂からは、目の届く限り青い海が見渡せた。
From the mountaintop, we could see the blue sea as far as the eye could reach.
A set phrase composed of 目 (eye), 届く (to reach), and 限り (limit), literally 'as far as the eye reaches'.