![]() ![]() A4 sized paper should measure 29,7 centimeters or 11,6 inch vertically. Letter sized paper should measure 27,94 centimeters or 11 inch vertically. If you are wearing glasses, remove them and look at something 10-20 feet away. Hold a blank paper against your ruler as shown on the image. Measuring your PD can be done easily at home, especially with a friend, or a family member. If it’s missing, don’t worry, we can help. Please keep in mind that the PD is not always given as part of your prescription when you have an eye exam. (The reading PD is normally 3mm less than the distance PD as eyes will get closer when reading.) They come in sizes like 12 inch, 18 inch, 24 inch. Printable ruler templates are available in different measurement units like inches, centimeters, millimeters. The template can be printed on paper or cardstock to create a straight, reusable ruler for various purposes. While 58 is your reading PD which can only be used when you need single vision reading glasses. A blank printable ruler template is a tool for accurately measuring length. 61 is your distance PD which can be used when you need single vision distance glasses, bifocal and progressive glasses. ![]() It is notated as two numbers around 30mm such as 31 and 32.ģ.Sometimes PD is notated as "61/58". The average PD range for adults is 57-72 mm and for kids is about 43-58 mm.ġ.Binocular PD is notated as a single number such as "63", means the total distance between your pupils.Ģ.Monocular PD is the distance from the bridge of your nose to your pupil on each side. Generally speaking, the PD numbers for adults stays the same. You can normally find your PD on your prescription. For people with strong prescription, this is especially important. Your PD is an important factor and tells you where you look through the lens of your glasses and should be as accurate as possible. PD stands for Pupillary Distance, which is the measurement from the center of one pupil to the center of the other.
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