Biomedics 55 contact lenses are made of polymacon with a water content of 55% and are 1-2 Week Disposable contacts from CooperVision. Biomedics 55 lenses are a good choice for first time contact lens patients. Disposable lenses offer you the advantage of not having to worry about the daily cleaning and care of contacts. No more irritated eyes from deposit build up or preservatives in contact lens cleaning solution. Biomedics 55 (UltraFlex 55) Contact Lenses are manufactured with a light blue tint to assist you in finding and handling your lenses, making it an easy-to-use, convenient lens.