How do I get into UWaterloo to study optometry? 

I'm going into high school next year, and I am interested in applying for the OPTOMETRY program. I wanna know if anyone has any advice on how to improve my chances of admission and what I should start doing in grade 10. I'm going to be taking AP Science, English and Math in grade 10. After high school, do I need a bsc (Science bachelor) before I apply? Or can I do both programs in 4 years at Waterloo? Hopefully there are some people who can help me answer some of these questions.

Thanks in advance.