Appraising your PD:
This measurement is the distance between the centre of your pupils that is measured in millimetres.
Opticians do not tend to give out this measurement as it encourages patients to buy their spectacles from them whereas you can buy cheap spectacles online or designer glasses at a fraction of the price online. It is commonly noted as one measurement like 60 (60mm) but could also be registered as R 29 L 31. When written in this way it is the individual distance from your right and left pupils to the center of your nose.
When Varifocals, High Prescriptions or Prisms are ordered the measurement is usually split individually. Generally it is written as a single value for most single vision prescriptions.
If you do not know this measurement and don’t want to measure it yourself then most online opticians will make your PD the national average (63) for men and (60) for women.
You could ask a friend or family member to calculate your pupillary distance for you:
This will be by far the simplest means by obtaining your PD. Get your friend to sit directly opposite you and at the same height as you and ask them to put a ruler against your forehead and just above your eyes.
Next ask your friend to close their right eye and you then look directly into their left eye. Request your friend to slide the rule so that the zero value is in the centre of your right pupil and to sustain the rule very steady across your brow. So, now look straight into your friends right eye with them closing their left eye.
Your associate will then take off the measurement to the centre of your left pupil. And that is it! It really is that easy! Please see the diagram below to help you further.
Using your present-day eyeglasses to evaluate you pupillary distance with assistance from a friend:
Do wear the glasses before hand and ensure that they fit nicely. Call For your colleague to stand opposite you and notice on your lenses the placement of your pupils with a non lasting marker.
There should be two lines visible in your line of sight, whilst you are viewing through your glasses. Simply, remove your specs and measure the distance between the two markings. And that’s it! If the ruler shows 6 cm then your pupillary distance will be termed as 60. If the measurement is 6.3cm then your pupillary distance will be 63.
If you have a varifocal measurement, then just measure across from your right eye to the centre of your nose and then again from the centre of your nose to your left eye and record the individual readings for both your left and right eyes. If you aren’t buying sunglasses with prescription lenses in then don’t worry about what’s in this article.
