In the name of God, the Most Gracious, the Most Merciful. We are the Vision Care Foundation, the sole exclusive agent for original British Chromagen lenses, registered with the Food and Drug Administration. Spectacle or contact lenses. They are not visible to the eye. A check-up must be done before choosing the appropriate lenses. Note: Contact lenses are not rented and should not be transferred from one person to another. A check-up and examination must be performed before purchase by a specialist doctor.