You can buy contact lenses online or through your phone if you have an up-to-date prescription from your eye doctor. If you do not have in-person prescriptions, you can complete an online eye examination or use an online retailer’s ‘doctor finder’ service. Some companies even have the option of booking an appointment online. However, experts advise that patients steer away from online eye examinations, which may be commercially driven. The prescription should specify the brand name and type of suitable lens. Thus, although it is possible to purchase lenses over the Internet, you should exercise caution, such as buying only from reputable retailers.