Manufactured by Coopervision, Biomedics 1 Day Extra is designed to offer a good level of comfort while accurately correcting both long and short-sighted prescriptions. Biomedics 1 Day Extra feature two base curves (8.6 & 8.8) this creates a much better fit for a wide range of wearers. These daily disposable contact lenses feature an excellent moisture locking technology built into each lens. Biomedics 1 Day Extra is incredibly each to use. No cleaning, no storing, no hassle. Each pack contains 30 soft contact lenses, which you can simply discard at the end of every day and replace them with a fresh pair the next.