Featuring 143 clinical cases, 379 full-color photographs, and 857 case-based questions, the Wills Eye Review of Ophthalmologyis an Internet-based interactive clinical review of ophthalmology and its subspecialties. Users are presented with a clinical photograph and scenario, and are then asked questions about differential diagnosis, testing, diagnosis, and treatment. The interactive Website recognizes typed responses; answers are followed with an explanation. This interactive case-based format fosters clinical decision-making and offers excellent preparation for written and oral board exams, recertification exams, and clinical practice.