OptoPrep™ Part I is the most complete Internet-based, interactive study guide with over 2000 questions complete with thorough answer explanations to help you prepare for the NBEO Applied Basic Science (ABS) exam (previously known as Part I). OptoPrep™ Part II is the most complete Internet-based, interactive study tool with hundreds of questions complete with thorough answer explanations to help you prepare for the NBEO® Patient Assessment and Management (PAM) exam (previously known as Part II). www.optoprep.com