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17/09/2013
0
A PD is the distance between the visual axes of the two eyes.   It can be measured manually with a ruler or automatically using a pupillometer. The pupillometer is more accurate as well as more consistent. USING A PUPILOMETER Place the nose pads on the patient’s nose with the forehead bar in place helping to center the instrument on the nose. Ask the patient to ..
16/09/2013
0
Are you using a millimeter ruler for PD's and fitting heights; does it define your expertise? As an optician or para-optometric, do you feel threatened by the number of digital measuring devices that you have seen or read about? I’ve had this discussion with many opticians and para-optometrics lately and here’s what I’ve heard. Yes, the Internet and new technology are placing new demands ..
12/01/2013
0
Digital PD meter HX2A --------------------------------------------------------------------------------------------------   ..
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