Hi, first time poster. I took the OAT today and was pretty amazed at how well I did. Quantitative Reasoning 390 Reading Comprehension 380 Biology 380 General Chemistry 370 Organic Chemistry 380 Physics 380 Total Science 400 Academic Average 380 Wow! The only study material I went out of my way to pursue was the Kaplan Optometry Admission Test 2009-2010 edition for $30. I highly valued this book, but its only practice tests and no content review. For content review, I used old textbooks. For me, practice tests were essential, especially for math, to be able to do quick calculations without using a calculator. I forgot the formula for calculating annual interest and other compounding interest problems, but i think i was able to look at the answers and pick out which ones were clearly wrong. About 10% of the quantitative reasoning questions were way too difficult to calculate and were probably only realistically solvable for eliminating obviously wrong answers. I studied for ~15 hours on ochem I studied for ~8 hours for physics I studied for ~2 hours for biology I practiced for ~6 hours for Quantitative Reasoning (probably the most beneficial practice I got after ochem) I did 7 practice reading comprehension passages and redid a couple of them several times to get within the time limit. I only studied electrochemistry and quantum for general chemistry for ~4 hours I'm a senior biochemistry major with a science GPA of 3.2. I hope my test score makes up for my unappealing GPA.