Rx - Allow PD NPD difference above range

An accurate pupillary distance (PD) measurement is required to make prescription glasses.

For example, a pupillary distance measurement is 67/64. This means that your pupil distance for distance vision (or DPD) is 67, and for near vision (or NPD, for reading eyeglasses or multifocal lenses) is 64.

As a default, the system accepts a maximum of 10mm difference for PD and NPD. More than this range will block the system order entry with an error message.

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To bypass the system default accepted value for the PD and NPD difference, Go to Setup > System settings > Order 2 tab, and inside the Patient PD options check the “Allow PD NPD Difference above range”.

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