Optometric Study Center: Courses published monthly in Review of Optometry and Review of Cornea & Contact Lenses, offering either 1 or 2 hours of CE credit. Processing fees apply. Exam valid for credit up to three years from release date.

Supported CE: Courses offered without exam fee, supported by an independent educational grant from a commercial interest. Typically valid for credit for one year from release date; longer active terms may exist for some exams.

Archived CE: Courses have expired but are displayed for reader interest. No credits available.