Nidek Medical RT-5100, Руководство оператора

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40
OPERATING PROCEDURE Setting Prism Lenses
2.3 Setting Prism Lenses
2.3.1 Switching between rectangular and polar coordinates
1
Press or to go into prism entry mode.
Pressing the prism field on the screen also goes into prism entry mode.
2
Press [XY] or [r

] on the screen.
This key toggles between rectangular (XY) and polar coordinates (r

).
Ex.)
Right eye: 1.0

BI, 1.0

BU

1.40

, BASE 45
°
Left eye: 2.0

BO, 1.5

BD

2.50

, BASE 323
°
2.3.2 Rectangular coordinates (XY)
1
Press or [ ] on the screen.
The rotary prism lenses are placed in the refractor head.
The prism powers are highlighted in the central screen.
2
Enter base in/out prism powers.
Turn the dial to change the prism powers (in 0.5

increments).
Turn the dial clockwise

The powers increase to the BO (base out) side.
Turn the dial counterclockwise

The powers increase to the BI (base in) side.
3
Press or
Û Ý
on the screen.
4
Enter base up/down prism powers.
Turn the dial to change the prism powers (in 0.5

increments).
Turn the dial clockwise

Left eye: The powers increase to the BD (base down) side.
Right eye: The powers increase to the BU (base up) side.
Turn the dial counterclockwise

Left eye: The powers increase to the BU (base up) side.
Right eye: The powers increase to the BD (base down) side.
The prism powers can also be entered in 0.1

increments with or instead of the
dial.
Pressing either key changes the power continuously. See page 135.
Turning the dial while pressing changes the power in 2

increments.
2.3.3 Polar coordinates (r

)
1
Press or [
ǭ
] on the screen.
The rotary prism lenses are placed in the refractor head.
The prism powers are highlighted in the central screen.
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Uncontrolled copy when printed.