Augmented Realty (AR) technology has a significant contribution in healthcare sector by offering valuable solutions the last two decades. The aim of this paper is to investigate the implementations of Augmented Reality technologies in healthcare, which include wearable devices such as AR Glasses and Optical Head-Mounted Display Devices (OHMD), by searching the international scientific literature. Relevant studies were retrieved online from scientific databases using keywords related to Augmented Reality in healthcare. The results indicate the numerous applications of these technologies in healthcare procedures, like diagnosis, treatment, and rehabilitation, as well as in the education of healthcare professionals. The international scientific community encourages the usage of the AR wearable technologies like AR glasses in Healthcare.