How Do You Measure Your Pupillary Distance?
Appraising your pupillary distance:
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 ordinarily recorded as a single measure such as 60 (60mm) but can also be registered as R 29 L 31. When penned in this way it is the individual space from your right and left pupils to the midline of your nose.
When Varifocals, High Prescriptions or Prisms are ordered the measure is commonly split individually. For most Single Vision prescriptions it is written as one value.
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. Your friend will have to place a ruler above your eyes, just across your forehead.
Next ask your friend to close their right eye and you then look directly into their left eye. Request your colleague to slide the ruler to bring about the zero value is in the center of your right pupil and to keep the ruler very steady across your frontal bone. 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 latest glasses to measure you PD with assistance from a friend:
Put your glasses on so that they are comfortable and steady. Request your colleague to stand opposite you and check on your lenses the position of your pupils with a non permanent marker.
There should be two lines visible in your line of sight, whilst you are viewing through your specs. Simply, take off your spectacles and measure the distance between the two markings. And that is it! If the ruler shows 6 cm then your pupillary distance will be termed as 60. If the measurement is 6.3cm then your PD 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.