{"id":29,"date":"2013-12-23T20:31:21","date_gmt":"2013-12-23T20:31:21","guid":{"rendered":"https:\/\/gosmarteyewear.com\/blog\/?p=29"},"modified":"2025-11-23T22:28:31","modified_gmt":"2025-11-23T22:28:31","slug":"how-do-i-measure-my-kids-pd","status":"publish","type":"post","link":"https:\/\/gosmarteyewear.com\/blog\/how-do-i-measure-my-kids-pd\/","title":{"rendered":"How Do I Measure My Kid’s Pupillary Distance (PD)?"},"content":{"rendered":"\n

BY MICHAEL WALACH<\/a><\/p>\n\n\n\n

What is a PD?<\/h2>\n\n\n\n

Pupillary Distance, PD for short, is simply the distance between the centers of the eye pupils measured in millimeters. This measurement is used to position the lens in the frame. <\/p>\n\n\n\n

What is the average Pupillary Distance for kids?<\/h2>\n\n\n\n

Most kid\u2019s PDs range between 40mm and 54mm.<\/p>\n\n\n\n

How to measure a child’s pupillary distance?<\/h2>\n\n\n\n

In order to successfully measure your child\u2019s PD you need two things: a camera and a personal card (ID, credit card, bank card, driver\u2019s license etc.). Any of those cards are usually 3 3\/8\u2033 (86mm) wide and it is used to compare it with your kid\u2019s PD.<\/p>\n\n\n\n

Here are 6 steps to take this measurement:<\/strong><\/h3>\n\n\n\n\n\n\n\n
    \n
  1. Make sure your child’s eyes are on the same level as yours.<\/li>\n\n\n\n
  2. Make sure the distance between the camera and the child is around 27″ (arm’s length) – see Picture 1.<\/li>\n\n\n\n
  3. Place the personal card (back side facing the camera so your personal information is not visible) on your child’s forehead, just above the eyes – see Picture 2.<\/li>\n\n\n\n
  4. Take a picture (preferably with flash).<\/li>\n\n\n\n
  5. Open the picture on your computer and re-size it so the card on the screen is 3 3\/8″ (86mm) wide.<\/li>\n\n\n\n
  6. Measure the distance between the centers of the eye pupils and add 2mm (we add two millimeters because we took the picture at around arm’s length and the eyes converged). This is your child’s PD.<\/li>\n<\/ol>\n\n\n\n
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    \"\"<\/figure>\n<\/div>\n<\/div>\n\n\n\n

    \u00a0Contact our customer service<\/a> if you have any questions or concerns!<\/p>\n\n\n\n

    <\/p>\n","protected":false},"excerpt":{"rendered":"

    BY MICHAEL WALACH What is a PD? Pupillary Distance, PD for short, is simply the distance between the centers of the eye pupils measured in millimeters. This measurement is used to position the lens in the frame. What is the average Pupillary Distance for kids? Most kid\u2019s PDs range between 40mm and 54mm. How to […]<\/p>\n","protected":false},"author":1,"featured_media":31,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":"","rank_math_title":"%title% %page%","rank_math_description":"Follow this 6 steps to In order to successfully measure your child's PD. You'll need two things: a camera and a personal card.","rank_math_canonical_url":"","rank_math_focus_keyword":"kid's pd"},"categories":[5],"tags":[],"class_list":["post-29","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-prescriptions"],"_links":{"self":[{"href":"https:\/\/gosmarteyewear.com\/blog\/wp-json\/wp\/v2\/posts\/29","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gosmarteyewear.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gosmarteyewear.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gosmarteyewear.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gosmarteyewear.com\/blog\/wp-json\/wp\/v2\/comments?post=29"}],"version-history":[{"count":7,"href":"https:\/\/gosmarteyewear.com\/blog\/wp-json\/wp\/v2\/posts\/29\/revisions"}],"predecessor-version":[{"id":433,"href":"https:\/\/gosmarteyewear.com\/blog\/wp-json\/wp\/v2\/posts\/29\/revisions\/433"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gosmarteyewear.com\/blog\/wp-json\/wp\/v2\/media\/31"}],"wp:attachment":[{"href":"https:\/\/gosmarteyewear.com\/blog\/wp-json\/wp\/v2\/media?parent=29"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gosmarteyewear.com\/blog\/wp-json\/wp\/v2\/categories?post=29"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gosmarteyewear.com\/blog\/wp-json\/wp\/v2\/tags?post=29"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}