The quality of online products some are good, some are bad. You must pay attention to When you buy online for the first time. As you see, you never purchase contact lenses online, in my opinion, you can ask your friends and colleagues to see if they have purchased online experience. Of course, for me, I think it is quite safe, because I have myopia, too, and I bought contact lenses on the Internet several times, the result shows that the quality has no problem; However, when you buy it for the first time, you need to purchase in a regular and reputable web sites to ensure the quality of the glasses.