Bloody eyes are often a feature of people who stay up late, but you don't need to make that sacrifice to have bloody eyes and scare your friends. All you need to do is wear a pair of ColourVue Ravenous mini sclera 17mm contact lenses. These large contacts feature fine red lines that look just like tiny blood vessels. They also have a black outer ring, which emphasizes how big they are and makes your eyes look big as well. Due to their creepy look, ColourVue Ravenous contacts make a great costume accessory, especially for zombie or vampire costumes. Try them out now!