a cycle of matching glasses

pu1. I think it depends on whether or not your eyesight changes, and if your eyesight doesn't change particularly, and if your glasses are fine, there's no reason to change it

2017-11-14

OK

pu3. If you can't see well with existing glasses due to poor eyesight, you can change it, but if you wear glasses and have poor correction vision, you can increase the number of glasses every three months. Until I finally get 1.0 for my eyesight,

2017-11-14

OK