It really depends on what areas you are stronger in. I got an overall score of 300, was decent on the Biology and physics. I did not have OChem taken yet, (really low score). So my total science score was 270 ( and that hurt my chances of getting in this year). So its not just your overall score, they also want a good total science score. I got a 390 on the Reading Comp. though. And the QR section was really tough. Kaplan review books, or at least the one I had, was not a very good book study question, it was not even close to what was on the real test. Its not easy, and I only had about a month to prepare for the test, I was applying late. I have decided to abandon my plan for optometry, since the future of optometry is looking pretty bleak (overall). I decided its not worth the time, money and sweat. Since I am already an RN, I decided toward NP/PA instead.