Consider average OAT score, first-time pass rate, and quality of applicant (leadership, research, etc).
I would say Ohio State, Southern, SUNY, UC Berkeley, and Waterloo (in alphabetical order) would be the top ones consistently. The other schools test higher in certain areas every now and then, but their student numbers are more volatile.
In this first-of-its-kind report, see what 1,476 optometry students—20% of all U.S. students—had to say about the clinical education and professional development provided by U.S. and Canadian optometry schools.
You can see which schools students rated the highest in this report