Kimi ga Mie Nakute mo(2003)

Kimi ga Mie Nakute mo

A college girl reunited with her high school sweetheart she used to have a crush on after two years of separation. What she didn't know during the time they lost contact was the boy had lost his vision due to an accident. She then determined to become his eyes, yet there were far more obstacles in front of her than she expected.

(Source: Anime News Network)