The following subscription plans are available. Please note that these are the ONLY plans we offer. We will not respond to requests for "custom"-length subscriptions. Renewals are offered for current active subscriptions only. Users should renew their subscription prior to the expiration date as renewals are not offered for expired subscriptions. The renewal will be effective from the current subscription expiration date and not from the date of renewal. We reserve the right to change the subscription rates at our discretion. Therefore, purchasing a subscription at a certain rate does not guarantee the same rate will be available at a later date. Group rates are available as well -- please contact support if you have a group of 10 or more interested in using OphthoQuestions.