The Sight Center of Northwest Ohio provides services to people facing challenges due to low vision or blindness in the following 16-counties throughout northwest Ohio:
- Allen
- Defiance
- Erie
- Fulton
- Hancock
- Henry
- Huron
- Lucas
- Ottawa
- Paulding
- Putnam
- Sandusky
- Seneca
- Williams
- Wood
- Wyandot
