![]() ![]() ![]() Ask a friend: measuring your PD on your own might be a little tricky, so having a friend will be easier.Repeat the same procedure with your right pupil.Measure the distance between your nose bridge to the centre of your left pupil.Place the zero line of the ruler at the centre of your nose bridge.It comprises of two measurements and is generally indicated as ‘30(left)/33(right)’. It is the distance between one pupil to the centre of your nose bridge. 3 simple steps to measure dual PDĭual PD is also known as monocular PD. If you measure your PD the wrong way, you won’t have the right lens placement. It might result in a wrong conversion and your measurement won’t be accurate. □ Quick tip: If your ruler is in centimetres, you can convert it online, but don’t measure your PD in inches. Repeat these steps two to three times to get a consistent number.The average PD for adult women ranges from 46mm to 65mm adult men ranges from 59mm to 74mm. Measure across to the middle of your right pupil, still looking into the distance.You can now measure the distance between your pupils. Rest the ruler against the bridge of your nose and line up the middle of your left pupil with the zero line on the ruler.If a friend is taking your measurements, try to look past them (straight ahead) into the distance to avoid the result being too narrow. If using a mirror, try to look straight ahead and into the distance as you measure.You’ll need a ruler with millimetre measurements and a mirror or a friend.Just make sure to take your time and do it at least twice, to ensure it’s accurate.įollow the instructions below to measure your PD at home. But don’t worry if they didn’t include it on your glasses prescription – it’s easy to measure PD by yourself. Whenever possible, we recommend getting your PD measurement from your eye care professional. If you don’t know what your PD is, you can measure it by yourself with our quick guide below. It’s important that your PD should be as accurate as possible to make sure you get the clearest and most accurate vision. It indicates the optical centre of your eyes, to make sure that your correction is right in front of your pupils. Your PD ensures that your prescription is properly focused and centred. PD is the distance between the centre of your pupils, measured in millimetres (mm). Without the right PD, you might experience eye strain and headaches because they’re not the right fit for your vision. We are NOT a legal entity providing legal advice.Before you order a pair of prescription glasses online, it’s essential to have your pupillary distance (or PD) measurement.Īs part of your glasses prescription, PD helps ensure you to see clearly when you put on your new pair of glasses. For those of you that want the abridged version (TL DR) then basically, there are 3 states that require the PD in an RX, and those are Alaska, Massachusetts, and New Mexico.ĭisclaimer: We take no responsibility for the accuracy of this data provided here. optometrist) to measure and give your PD with your prescription. Here is a break down of what states require your ECP (e.g. ![]() We recommend that you get it when you get your prescription from an Eye Care Profressional (ECP). In order to buy a pair of glasses here on Umizato, you will need your PD or pupillary distance (aka interpupillary distance). ![]()
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