Is there an app to measure PD for glasses?

GlassifyMe’s PD Meter App is available for both iOS and Android. All you need is a standard card with a magnetic strip (gift card, rewards cart, or points card) and you can measure your PD using the app in a few quick steps – without the need of a ruler.

Can pupillary distance be measured at home?

MEASURING YOUR OWN PD With your face straight, hold the ruler against your brow. Close your right eye and align the ruler’s zero to the center of your left pupil. Read the mm line that lines up with the center of your right pupil. This number is your PD.

What if my PD is not on my prescription?

The doctor during your exam does not take your PD at anytime during your exam, as that is left to the optician who is going to make your eyewear. Having an inaccurate PD will not harm you, but may make your vision uncomfortable, strained and in the worse case scenario, cause double vision.

Can iPhone measure pupillary distance?

A new application for Apple’s iPhone enables users to measure both their near and far pupillary distances (PD) in order to make online purchases of spectacles.

Can you measure pupillary distance at home?

Measuring Your Own Inter-Pupillary Distance at Home Grab a ruler with millimeter units. In order to measure your PD at home, you will need a ruler that has millimeter units. Stand in front of a mirror. If you’re measuring your own PD, you’ll need to use a mirror. Close your right eye to center your left pupil.

Can you measure PD from old glasses?

Secondly, you can take your measurement by using the ruler to measure the two dots. keep it in mind that you need to keep your face muscles relax and the help of your friends will be perfect. In general, eye doctor will provide the current prescription and PD of your old glasses if you need.

What does “pupillary distance” mean in prescription glasses?

So, first thing’s first: what is pupillary distance (PD)? Essentially, it’s the distance between the centres of your pupils (the black bits in the middle of the eyes). Your PD is an important part of your glasses prescription that makes sure you’re looking through the best spot in your lenses for clear vision.

How precise is pupillary distance?

Average pupillary distance for an adult is between 54-68mm,with acceptable measurement deviations generally falling in between 48mm and 73mm.

The range for children is approximately 41-55mm.

The large majority (95 percentile) of adult males in the USA have a pupillary distance of 70mm while a small minority (5 percentile) measure 55mm.