Augmented Reality (AR) is a technology that superimposes digital information on the real world. This information can be visual, auditory, or haptic in nature. In education, AR can be used to create interactive and immersive learning experiences that help students learn more effectively. AR can be used to improve surgical procedures, train medical professionals, and educate patients. This study provides a comprehensive review of the state-of-the-art in AR research and development in the educational and medical fields, along with the basic principles of AR and its potential applications. It also discusses the challenges and opportunities associated with the adoption of AR in these fields.