35+ Years Helping Students Prepare for the DAT | Save Up to $135 on Bundles
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35+ Years Helping Students Prepare for the DAT | Save Up to $135 on Bundles
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How to Study for the OAT (2026 Guide)

Trusted by OAT students since 2006. Written by Dr. Jim Romano, creator of the OAT Destroyer.

If you are preparing for the Optometry Admission Test, this guide covers everything you need — a proven study plan, the best OAT study materials, and free resources to get started.

What Is the OAT?

The OAT (Optometry Admission Test) is required for admission to optometry schools across the U.S. and Canada. It tests Biology, General Chemistry, Organic Chemistry, Reading Comprehension, Physics, and Quantitative Reasoning.

A strong OAT score is one of the most important factors in your optometry school application. Admissions committees use the OAT to evaluate your academic readiness across all core science subjects.

How Long Should You Study for the OAT?

Most students need 3 to 6 months of dedicated preparation. The right timeline depends on your science background and target score. Students who follow a structured study plan using high-quality materials consistently outperform those who study without one.

The Best Way to Study for the OAT

  • Start with a full diagnostic to identify your weakest subjects
  • Build your foundation in Biology, General Chemistry, and Organic Chemistry first
  • Use OAT Destroyer and Math Destroyer as your core foundation
  • Practice every section daily — do not skip Quantitative Reasoning or Physics
  • Review mistakes immediately — understanding why you got something wrong is more important than getting it right
  • Join the DAT and OAT Destroyer Study Group on Facebook for free Biology review materials from Dr. Romano

Best OAT Study Materials (2026)

If you are comparing DAT study materials, see our breakdown of DAT Bootcamp vs DAT Booster vs DAT Destroyer.

Free OAT Resources from Dr. Jim Romano

Before you purchase anything, start here:
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OAT Classes with Dr. Jim Romano

If you want structured instruction alongside your self-study plan, Dr. Romano teaches live DAT and OAT classes — in person in Staten Island or online via Zoom.

View the 2026 Summer DAT and OAT Class Schedule

Start Your OAT Preparation Today