My eye is very weak so I need high refractive glasses. Only Owndays doesn't need extra money so I selected Owndays.
I bought 5980 yen(tax included 6400 yen) plan with 1.67 refractive index and I could also select 1.71 one but I choosed 1.67 one.
My old glasses which I bought about 5 years ago was about over 20000 yen so it is very cheap ! We can buy good things with cheap prices !