You can place an order without a PD (pupil distance) written on your prescription.

How do I order my new prescription safety glasses, if my prescription doesn’t have a pupil distance (PD) measurement?

Well, there are a couple of ways you could go about this.  Firstly you could measure it yourself.  Either using a friend or a mirror and a ruler with millimeter graduations.  To use a mirror line the ruler up on your forehead and measure from the outside edge of one pupil to the inside edge of the pupil in the opposite eye.  A friend could do the same thing facing you.

Alternatively you could take a photo with a ruler or tape measure on your forehead above your eyes and email it to us and we can work it out for you.