Euphrasy is a medicinal herb, also known as EYEBRIGHT, which has been used for centuries to treat eye ailments. It is a small, annual flowering plant with white, pink, or purple flowers and is native to Europe, Asia, and North America. The herb has been used to treat a variety of eye conditions, including conjunctivitis, styes, and blepharitis. It is also believed to have anti-inflammatory properties and can be used to reduce redness and swelling in the eyes.