PDR-7000 Operation Manual
Increases or decreases the fog amount
Base up prism of 6Δ
Base in prism of 10Δ
Base down prism of 3Δ in the right eye, base up prism of 3Δ in the left eye.
Right eye: Horizontal maddox rod, Left eye: Open aperture
Right eye: Open aperture, Left eye: Vertical maddox rod
Pinhole plate (Ф2 mm)
3.5 Fog Function for testing a single eye
It is possible to test both eyes while the both measuring windows are opened.
1. Press the auxiliary lens display at the top
of the measurement screen to appears the
Auxiliary Lenses window.
2. Press [FOG].
3. Adjust the amount of the FOG by using +/-.
4. Press [FOG] again.
The selected side is fogged with the preset
amount instead of the occluder.
Perform one of the following operations to clear
the fog.
- Press
- Turn the power off and on again.
- Press any chart button which specifies auxiliary lenses other than open or occluder.
- Select any auxiliary lens.
Pressing [+] or [–] in the Auxiliary Lenses window changes the fog amount. The
variable range is from 0.00 D to +9.00 D. The factory setting is +1.75 D.
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