(as) far as the eye can / could / will see

/az ɔː fˈɑːɹ az ðɪ ˈaɪ kan ɔː kʊd ɔː wɪl sˈiː/

/æz ɔːɹ fˈɑːɹ æz ðɪ ˈaɪ kæn ɔːɹ kʊd ɔːɹ wɪl sˈiː/

until the point that one is capable of seeing

Examples

1. The sky seemed endless, stretching as far as the eye could see.

2. The sky seemed endless, stretching as far as the eye could see.

3. Of course that's very important with the U.S. running nearly trillion dollar deficits which are expected to continue as far as the eye can see.

4. Of course that's very important with the U.S. running nearly trillion dollar deficits which are expected to continue as far as the eye can see.