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How to Measure Your PD

  1. Stand 8 in. away from a mirror.
  2. Hold a ruler against your brow.
  3. Close your right eye then align the ruler’s 0 mm with the center of your left pupil.
  4. Look straight then close your left eye and open your right eye.
  5. The mm line that lines up to the center of your right pupil is your PD.

Check out the graphic below for more information and to learn how your friend can help you measure your PD.

Armed with your PD and prescription, you can shop at Zenni to find your perfect pair of glasses.

How to Measure Your Frame Size

The frame width

Measures the entire horizontal front of the frame, from the furthest extended point on either side..

The length hight

It is the vertical height of the lens,Measure the lens vertically, at its tallest point. For bifocal or progressive prescriptions, the lens height must be at least 30 mm..

The brige

It is the part that goes across the bridge of your nose—hence the name.

The temple arms

It connect to the front of the frame on either side and rest behind your ear.

The lens width

It is the horizontal diameter of one lens. Doctors may refer to this as “eye size.”

Keep in mind

Once you have the measurements for your frame dimensions, shop to your heart’s desire and find that perfect pair of glasses online!

How to Adjust Your Sunglasses

Sometimes new eyeglasses need to be adjusted. In the old days, when you paid 10 times more for glasses you bought at the local optical store, the optician adjusted them for you.

Use your thumbs to push the nose pads closer together until they fit snugly against either side of your nose.

When one lens is closer to your eye than the other,Bend the bilateral temple arm in and/or the right temple arm out at the hinge.

The Hidden Costs You Pay for sunglasses

Sunlool has its own state-of-the-art production facility with advanced prescription and edging labs. We cut out the middlemen and pass huge savings on to you instead.No retail distribution needed. Sunlool sells directly to the customer.


Lifetime Cost of Wearing Sunglasses