Eyebright is a delicate plant that is often used for its medicinal properties. It has several synonyms that you may not have heard of, but they all refer to the same plant. Some of the synonyms for eyebright include Euphrasia, Augentrost, and Ocularia. Euphrasia is derived from the Greek word "euphrosyne," which means "gladness" or "mirth." Augentrost comes from German words "auge" meaning "eye" and "trost" meaning "comfort." Ocularia is derived from the Latin word "oculus," which means "eye." Regardless of the name you use, this herb has been used for centuries to treat eye ailments, allergies, and infections.