How to adjust my glasses? I just bought one of new prescription glasses from local store, but when I wearing it I can not get it to sit right! I did adjust as said in the direction that the assistant told me in the local store. The vision in front me are all blurry and to be able to see I have to pull the glasses way out off my face. just not right!!! How could I do??who can give me right suggestion. Thank you for any help!