When people step into their 40s ,their vision ability will decrease more or less,some will get presbyopia or hyperopia,the former just need a pair of reading glass ,while the latter have the problem of both far and near,then they need progressive of bifocal eyeglassed.

Yep ,I ordered a pair of progressive eyeglass for my father yesterday,hope he will like it ,and the eyeglass can do some help to his eyes.