Eyeglasses, including myopia glasses, sunglasses, presbyopia glasses and contact lenses, are medical devices in the U.S. The FDA specifies the product classification and management requirements for each medical device, and there are more than 1,700 kinds of products in the FDA's product catalog***, and you need to refer to the product's detailed specification to know how to classify them. According to the different risk level, FDA divides medical devices into three classes (I, II, III), glasses belong to class I as "general management" products.FDA registration needs to submit company's English information, product name, importer's information, and also need to pay the FDA official fee of $5,672 per year. In addition, the glasses need to be exported before the drop ball test (lens impact test), that is, according to the standard 21CFR801.410 used to do the drop impact test of the steel ball, the requirements of the diameter of 0.625 inches, the weight of the equivalent of 1 ounce, from a height of 50 inches down. It is required that there be no breakage of the lens.