14
d. The tester observes the re
fl
ecting light spot on the testee's pupil
through measuring window. Slide the Left and Right Pupils
Measuring Keys, the left and right pupillary distance pointers will
coincide with the re
fl
ecting light spots of the testee's left and right
pupils, respectively(as shown in Fig.7a and Fig.7b ). The data shown
in the display window are the measured pupillary distance.
Fig. 7a (The sight the tester observes through measuring window)
Fig.7b (The left and right pointers coincide with the reflecting bright dots)
e. In order to measure the pupillary distance at different optic
distances, please turn the Optic Distance Knob (as shown in Fig.1
NO.2) to your optic distances first and then make your measurement.
This device sets some different optic distance locations such as 30cm,
35cm, 40cm, 50cm, 65cm, 1m, 2m and
∞
.
*In the process of measurement (and the measurement of monocular
pupillary distance described in the following section), to achieve
precise data of measurement and make process of measurement