Do you want to order a new pair of prescription eyeglasses online for vision correction? But you need two things to order, and that is up to date prescription and PD. Have you any idea about pupillary distance? Generally, it is the distance between the center of your pupils? This measurement makes sure that your current prescription will sit properly to get clear and exact correct vision. Most people are unaware that why is pupillary distance important and how it can affect your specs?
PD is essential, and its measurement should be exact. It affects your eyewear prescription. It makes sure that your lenses will have a correct placement in the frames of your eyeglasses. Your PD is the determining factor for your vision and eyes health. Besides, it shows the optical center of eyes and also make sure that the prescription will be corrected in front of pupils. By doing so, you will achieve a clear vision with your specs.
After getting awareness about PD and its measurement, you have to make sure that you have got the exact number. For this, you can match your taking PD measurement with average pupil distance.
· For female, average PD is 46mm-65mm
· For male, average PD is 59mm-74mm
Every prescription lens specs have an optical center that can measure pupillary distance. It is the distance that can determine where you see by the lenses of your prescription eyewear. It should be as accurate as possible because it affects your vision. With the wrong PD, your eyeglasses will not give you an exact view. It certifies that your prescription has accurately centered and focused.
Main Steps to Measure Pupillary Distance:
· Stand in front of the mirror 8 inches away.
· Hold your face straight and place the ruler contrary to eyebrows.
· Now close the right eye and align ruler from zero from the mid of your pupil.
· Look straight and open your right eye after closing the left eye.
· Try to read the line having mm and line up with mid of right pupil.
· That’s it, this is your pupillary distance in numbers.
· Measure your pupil distance at least 3 to 4 times
What is a Single PD Ad Dual PD?
Single pupil distance is the distance between the center of each pupil that can be PD. Such PD can use for all types of Prescription Eyewear but not for reading eyeglasses. This measurement is as easy as anyone can do.
Dual pupil distance or can call as monocular PD that contains two numbers. This is the distance of the center of both pupils along the nose bridge. Dual PD often writes with the following notation 32/30. The first number indicates the measurement of the right eye, and the second number expresses the number of the left eye.
Additional Tips without Measure Pupillary Distance Online:
Ask your friend to measure PD because to get measurement by own can be a little tricky. But your friend can make it easy for you. Another option is optician for dual PD if you want to get an accurate measurement.