[samokan]

you can, I did. Unfortunately you can't buy it unless you are check by an optometrist first. Most stores don't have an in-house optometrist but they do have a partner optometrist just beside most shops. Check-up price is around 3000-5000 yen depending on the clinic.

Some have in-house doctor and the check-up is free, but there is a bit price difference in price of contact lenses.