How to Measure PD

PD or Pupil Distance is the distance between the pupil of each eye. Usually it is not provided by your optometrist and taken by the optician when you place order for eyeglasses. We highly recommend that you get this PD value when you have your eye examination from the Optometrist and keep it safe. 
This value is measured in mm (MILLIMETER) which is used to align the center of the lenses with the pupil. The PD is very important measurement specially for strong prescription. Incorrect PD may result in eye strain or headache.

If you do not have the PD on your prescription, you can measure it as shown below:
Step - 1 Place a simple mm ruler on your nose so that the starting point of the ruler is exactly at your left or right eye pupil. Keep the scale straight 
Step - 2 Make Sure to look straight 
Step - 3 Stand in front of the mirror or ask one of your friend to read the scale to measure the distance between the pupils. 
Step - 4 Repeat this at least three times to be more accurate. 

In most of the cases, PD value ranges between 57 mm to 65 mm with most common 63 mm 
Most optometrists/ophthalmologists do not routinely write this measurement on their prescription because they assume it will be measured by the optician who is making your lenses.
You may ask your or any local optician/optometrist to measure your PD and send it by return e-mail or call us with it.