When you buy through our links, Business Insider may earn an affiliate commission. Learn moreLensablPicking out the correct contacts for your vision and personal preference requires more effort than choosing a pair of frames you like. Once you get an up-to-date prescription and a contact lens fitting with your eye doctor, ordering them online is often cheaper and far more convenient than placing an order via your doctor.Our top pick for buying online contacts is 1-800 Contacts; this company offers an easy-to-use online shop and has over 250 brands to choose from.