It does not sound like you know much, if anything, about optometry school. Which is fine, we all have to start somewhere.
www.opted.org
The above is a good website that can answer a lot of your questions. Like: Pre-req, what an OD does, the names and addresses of the schools, average undergrad GPA's and OAT scores.
Good luck, we are hear to help if you need it. But, I think the above website will be able to fill in a lot of holes.