![]() For taking the PD you need to sit in front of a mirror but all you can see in the Mirror is the reflection of the objects that you are using. There are high chances of getting the wrong PD on your own. The first and foremost reason to avoid taking your PD by yourself is that the calculation of PD will not be accurate. Therefore, it will give you the wrong measurement and that might lead to improper fitting of the glasses. ![]() Secondly, if you are at your developing age, it is advised not to take the measurement from your previous glasses because your body develops as you grow old. Therefore, it has to be examined by the manufacturer. There are many bends and curves in the glasses that may give you the wrong results. In order to get the measurements from your previous glasses, you need to send the glasses to the manufacturer so that they can give you exact measurements of your previous glasses. However, it is a very complicated procedure. One of which is measuring your old glasses. There are some other ways as well to measure pupillary distance. Measure the distance between these dots on your lens, this is your PD.Mark the point on your other lens similarly.Close your right eye then mark the object at the point it appears on your lens. ![]()
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