Some advice from MEDOLONG STORE
1.You are not sure about your diopter and pupil distance between your eye balls. Please do not place the order.
2.If you have special pupil distance, please buy customized glasses. Because the pupil distance for mass production is 63mm(±2mm).
3. All in all, when you purchase the glasses, please make sure the correct optometry data including the diopter of your eyes and distance between your eye balls.