DESC: Focus 1-2 Week Lenses may be prescribed by your eye care practitioner for removal and disinfecting each night before you sleep. Or, they may be prescribed for wearing continuously (even during sleep) for up to seven days. You should NEVER wear your lenses overnight without seeking advice from your eye care practitioner first, as many people are not suited for extended contact lens wear. Focus Softcolors Lenses are tinted to enhance your natural eye color. By highlighting the color of your eyes Focus Softcolors 1-2 Week Lenses enhance their natural beauty in three tints -- Aqua, Royal Blue and Evergreen. They?re especially suited for light-colored eyes (all shades of blue and green, light hazel and gray). Lenses are provided to you in foil-sealed tamper-evident packages.