Optometry school undergraduate requirements?

<p>I need a general idea of undergraduate requirements and a step by step guide to optometry school.
I'm looking at SUNY (The State University of New York) optometry school which I heard had a 95% graduation rate.
I tried looking for undergrad. requirements but couldn't find any.
What else should I do besides getting good grades?
I'm an Environmental Science major freshmen at UCR, what major should I change it to?
By the way, even though UCB requires 2 semesters or 3 quarers of calculus while SUNY requires only 1, which one is harder to get into?</p>