![\"\"](\"https:\/\/www.selectspecs.com\/blog\/wp-content\/uploads\/2011\/08\/guide-to-checking-your-pupillary-distance-pd.jpg\" "\\"guide-to-checking-your-pupillary-distance-pd\\"")
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When buying new prescription glasses, you will need to know your Pupillary Distance (PD) measurement. Simply put, this is the distance between the centre of your pupils.<\/strong> To help you understand the process of measuring your PD we have put together a short video showing you (with the help of another person) how to measure both your reading and distance Pupillary Distance measurement.<\/p>\n<\/p>\n Here is a recap of the points in the video for measuring your PD:-<\/p>\n \tHow to measure a friend's distance PD:<\/strong> \tHow to measure a friend's reading PD:<\/strong> Can I measure my PD myself using a mirror?
\n\t1. <\/strong>Sit opposite your friend at arm's distance apart.
\n\t2. <\/strong>Place the PD ruler on the bridge of your friend's nose.
\n\t3. <\/strong>Close your right eye and look directly into your friend's right eye. Your friend should look into your open eye.
\n\t4.<\/strong> Note the measurement from the centre of the ruler to the centre of your friend's pupil in millimeters.
\n\t5. <\/strong>Repeat with your other eye open.
\n\t6.<\/strong> Add the numbers together to work out your friend's PD measurement.<\/p>\n
\n\t1.<\/strong> Sit opposite your friend at arm's distance apart.
\n\t2. <\/strong>Place the PD ruler on the bridge of your friend's nose.
\n\t3.<\/strong> Your friend should hold a pen around 30cm in front of their face and focus on it with both eyes.
\n\t4.<\/strong> Note the measurement from the centre of the ruler to the centre of each of your friend's pupils in millimeters.
\n\t5.<\/strong> Add the numbers together to work out your friend's PD measurement.<\/p>\n
\n\t<\/strong>No, this will give you an inaccurate reading as your eyes will converge. We always recommend asking for help from a friend, family member or colleague to get an accurate reading.
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