Topcon TRK-1P - Page 150

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INDIVIDUAL OPERATIONS
4 Press the MOVE LEFT POSITIONING BAR button (move to the left) or (move
to the right) and bring the left positioning bar to the left end of iris.
5 Press the MOVE RIGHT POSITIONING BAR button (move to the left) or
(move to the right) and bring the right positioning bar to the right end of iris.
6 Press .
7 The cornea diameter is displayed.
MOVE LEFT POSITIONING BAR button
MOVE RIGHT POSITIONING BAR button
MEASUREMENT switch