What is NV-ADD?

What is NV-ADD?


How to measure your pupillary distance

Pupillary distance is measured in millimeters from the center of one pupil to the center of another pupil. This measurement helps to ensure that your prescription is properly centered in the spectacle lens for the clearest and most accurate vision. PD represents the pupillary distance, which is measured from the right pupil to the left pupil. The PD of the adult is between 54-74. The children are between 43-54.


5 Steps to Get Your Perfect Eyeglass Frame Online

Many shoppers believe there's just too big a risk that the eyeglass frame they buy online won't fit or won't look good on them. Here are your top 5 tips for you to get your perfect fit.


1.74 high index lenses

1.74 high index lenses, thinner, lighter, much more flattering, more expensive。


Eyeglass Frame Shapes

Eyeglass Frame Shapes