11 Measuring Procedure
40 / 85 Instruction Manual Pentacam® AXL (G/70100/EN 1121 Rev04)
Adjust the patient’s eye level using the twist grip (fig. 11-7, page 39,
item 2).
The patient is positioned correctly when chin and forehead touch the
rests and the eyes are level with the marking.
If you adjust the chinrest for a small head (for example: a child‘s head),
the test eye may stop the chinrest. Swing the test eye to the side and then
adjust the chinrest.
Example of a rough adjustment for the right eye: Move the cross
slide (1) until the marking at the end of the cross slide (4) roughly
coincides with the circle R (3) on the sliding plate.
Look at the patient’s eye you are examining from one side and make
sure that the blue slit light illuminates the cornea.
If necessary, adjust the position of the cross slide to the left or right
1 Cross slide 4 Marking on the cross slide
2 Left marking 5 Joystick
3 Right marking
Fig. 11-8: Markings on the cross slide