I just recently checked my eye Nomber at small optical shop and bought glasses from there.but now when i wear glasses only right eye is feel so much strain and I see blurry vision at distance of just 9 feet.Is that any problem in glasses or my right eye number is not match to the glasses no ? Or this strain is normal for first time glasses He consult my eye number as 1.50 for right eye & 0.50-0.50 for my left eye.