There are four classes of membership in AOPT: Regular Members, Associate Members, Contributing Members, and Emeritus Members.

• REGULAR MEMBERS. Regular Membership are individuals demonstrating a genuine interest in or making significant contribution to ocular pharmacology and therapeutics. This may be evidenced by a) scientific publications; b) attendance at pharmacological, ophthalmological, optometric, or visual science meetings; c) direct involvement in research. A candidate for membership completes the online membership form and pays the appropriate membership dues. Membership is for two years and includes a subscription to the Journal of Ocular Pharmacology and Therapeutics.
• ASSOCIATE MEMBERS. Associate Membership is for predoctoral and postdoctoral students. A candidate for this membership must have a pre-doctoral, or post-doctoral student status, and must complete the online membership form and pay the appropriate membership dues.
• CONTRIBUTING MEMBERS. Contributing Membership is restricted to corporations, associations, and individuals who support the objectives of AOPT but do not satisfy the requirements of Regular Membership or individuals elected to membership in any class who voluntarily choose to become Contributing Members. A candidate for contributing membership completes the online membership form and pays the appropriate membership dues.
• EMERITUS MEMBERS. Any Regular Member may make a written request to the Treasurer that his/her membership be transferred to that of an Emeritus Member. The request is subject to approval of the membership committee. Emeritus Members have all the rights and privileges of Regular Members, except those of voting and holding elective office.