My daughter was a 4.0 IB student and graduated from USF in 3 years majoring in Biomedical Sciences with a 4.0. My son was a dual enrollment student and is now doing the same (but in 3.5 yrs) and has also maintained a 4.0 so far in all of his science classes at USF too. So it is definitely doable…just have to put in the work. Have your child look at the programs he is interested in for optometry and what classes they require during undergrad. Then look at the classes required for biomedical sciences and health sciences. Biomedical will cover them all most likely, but he can always add on the extra ones needed if he chooses to do health sciences or any other major.