Topcon SL-D8Z - PREPARATIONS (continued); Adjusting Diopter and Pupillary Distance (PD) (cont.)

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PREPARATIONS
11 Holding the prism box, look through the eyepiece with both eyes, and adjust the pupillary
distance so that the image projected on the test rod can be seen without diplopia (double
vision), and appears to be three dimensional.
Prism box
Diopter adjusting ring
Diopter scale
* The illustration depicts
the SL-D7 type.