1 day acuvue define contact lenses are designed to work in harmony with your own eye colour adding a natural looking sparkle and shine to your eyes the clear and defined edge of the contact lens provides contrast between the iris and the white of your eye creating natural definition this range has been designed to provide the same quality and comfort as the 1 day acuvue moist contact lens with the same uv filter and moisture rich wetting agents included in both lenses both designs are manu