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(5) Function button
The display and functions of the function buttons are changed according to the dial functions and
modes. The display status and functions are described for each case in this chapter.
The five buttons from the left end and the eighth button at the right end are usually permanent but-
tons, and they have fixed functions.
When you use some of these buttons with the [Shift] switch, you can access other functions.
Permanent function buttons
• Function 1: [Step]
Changes the step for changing values when turning the dial to change data.
Data to be changed Example of display
Spherical power
Astigmatic power
Astigmatic axis
Prism
When the data to be changed is changed, the displayed button is also changed.
•
Function2: [Occlude / Fog]
• [Shift] + Function 2: [Aux. lens]
By using the [Shift] switch together, the function button 2 can work as the [Aux. lens] button.
Touch the [Aux. lens] button, and the auxiliary lens selection display appears.
Open
Horizontal Maddox
Pinhole
Vertical Maddox
The selected auxiliary lens is set to the CV-5000 and the auxiliary lens information is changed.
The auxiliary lens set here is used until other test is executed.
26
COMPONENT NAMES AND FUNCTIONS
Changes the step in order, "0.25 → 0.50 → 1.00 → 3.00".
Changes the step in order, "0.25 → 0.50".
Changes the step in order, "1° → 5°".
Changes the step in order, "0.1∆ → 0.5∆→ 1.0∆".
Changes the type of the occlusion plate or fogging, which should be
used for the untested eye in monocular test.
Touch the [Occlude / Fog] button, and the menu is displayed.
Polarization (45°)
Polarization (135°)
Operation by touching
6∆BU
Retino- (+1.5)
10∆BI
Retino- (+2.0)
Red/green filter
CC lens (±0.5)
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Need help?
Do you have a question about the KB-50 and is the answer not in the manual?
Questions and answers
My kb 50s is not recognizing data from the autorefractor when selecting input on the kb 50s. What do I need to do?
If your Topcon KB-50 is not recognizing data from the autorefractor, follow these steps:
1. Ensure the CV power supply unit is correctly connected to the device receiving data from the KB-50 via the serial cable.
2. Check that the serial port settings on the CV power supply unit are correct.
3. Update the KB-50 to the newest version.
4. If the issue persists, update the software of the connected device to the latest version.
If the problem continues, you may need to contact support with details such as the model name, serial number, purchase date, and a description of the malfunction.
This answer is automatically generated
THE LENS IN THE REFRACTOR HEEAD REST BLOCKED WHAT CAN I DO ?
How do you perform a Jackson cross cylinder?
To perform a Jackson cross cylinder test with the Topcon KB-50:
1. Use the [+] or [-] switch on the keyboard:
- Press [+] if the black frame lens is seen better.
- Press [-] if the red frame lens is seen better.
- When both lenses appear similar, press the [SET] switch.
2. Repeat the lens comparison several times until "Axis test is finished" appears in "mini help."
3. Start the refractive power test and perform it in the same way.
4. Repeat lens comparisons for refractive power several times. When done, the cross cylinder test is finished.
5. In "Smart CC" mode, you can perform the test by pressing the switch based on the patient's answer.
This answer is automatically generated