While you wear contact lenses, contact lenses are on the surface of your eyes. Whenever you blink, the cells in the outermost cornea cause friction with Restrict usage time – It is recommended to wear it within 8 hours. the contact lenses. If tears that act as a lubricant to the eyes are not secreted properly, it can also cause cornea injury. Sometimes your eyes will feel uncomfortable if you are in a situation where your eyes are short of tears and if it persists, it can hurt your cornea. This can cause inflammation of the eyes, so it is recommended that you select contact lenses to suit your situation and limit your use time. We recommend that you wear it within 8 hours. (The specification of contact lenses that can affect usage time is the water content.)