Apply! I think you have a chance at some opt schools. Your GPA is on the lower side, but you have a decent OAT score. If there is an upward trend in your GPA the admissions committee will see that. My science GPA was a 2.6ish, but I got into my top optometry school! It doesn't hurt to apply, and if you need to retake some pre-req classes for a better grade then do it. That's what I did. You can also directly contact the schools and they will give you feedback. I contacted my school a year before I applied, got feedback, and spent that time retaking classes and shadowing a lot of places. Apply to schools that take in students with stats similar to you. Are you applying for fall 2018? If yes, then you should apply asap because many of the spots are filling up. Good luck!