hard contact lense or oneday contact lense? i like to use hard contact lense. Hard contact lense users can sleep or taking nap with them on their eyes. The cost performance is good. In Japan, you can buy a lense from 8000yen(80 dollars) to 12000yen(120dollars). Most of hard contact lense users use them for 4 years. But it has pain when you are not used to it. most of my friends use oneday contact lense. They are soft contact lense. Oneday contact lenses aren,t given you pain, and you don't have a risk to drop it from your eyes. But cost performance isn't good. In Japan, it costs us 6000yen(approximately 65dollars) for each months. And it isn,t good for eyes when you use them long time. A lot of eye doctors say, bad point of soft contact lense is it is hard to notice a trouble of your eye.A pain is a sign from your body that something wrong happen in you. But soft contact lense users are hard to notice it. I use hard contact lense almost every day. When i go to trip, or do sport, i use oneday contact lense. i think using for each purpose is good for my eyes.