Prescriptions are typically valid for one to two years , depending on your state's laws. 2. Choose Where to Buy
To buy contact lenses, you must follow a regulated medical process to ensure the safety and health of your eyes. Because lenses sit directly on your cornea, they are classified as medical devices and require a specific , which is different from a standard glasses prescription. 1. Get a Contact Lens Prescription how to buy contact lenses
The doctor measures your eye's curvature, diameter, and tear film to determine the best lens type and brand for you. Prescriptions are typically valid for one to two