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Ana cook


03/24/2012

Why my PD is not included in my prescirption script?Can I measure it myself?

Related Topics : PD prescription vision problems
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Answers (3)

  • ea4ever2end

    04/13/2012

    Your PD is not included possibly because it isn't part of the prescription usually. Sometimes the optometrist will write it on there , but the law doesn't require it .If you want to measure your PD by yourself ,you can do it with a mirror .First, put a ruler on the bridge of the nose using one hand when you are looking the mirror. make sure to keep your head and eyes still during the process . Second,with your right eye closed ,keep the rule "0" measurement exactly in line with the center of your left eyes pupil . Then open your right eye,and read the number that lines up with the centre of the pupil of the right eye. The number shows your PD.In case of error , you'd better repeat it for several times and get an average value .
  • oasujgimqmw

    05/13/2012

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  • ESTHER

    06/21/2012

    You'd better ask your eye doctor who give you eye exam. If you don't want to visit him/her, you can also measure your PD under the help of your friends or families. Here are some tips maybe help for you to measure PD. Step 1:Stand with a friend facing you and place a millimeter ruler on the bridge of your nose. Keep the rule "0" measurement is exactly in line with the center of your left pupil. Hold the ruler straight. Step 2:Let your friend read the measurement between the left pupil and the right pupil while you look straight ahead. Step 3:For measuring a PD with high accuracy, please do it 3 times and take an average number of them as the final PD measurement. For those requiring bifocal or progressive lenses, You'd better get this information directly from your optician.
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