Zeiss CIRRUS HD-OCT 500, Руководство пользователя

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Performance Verification Check
2660021169012 Rev. A 2017-12 CIRRUS HD-OCT User Manual
12-6
Performance Verification Check
With the Performance Verification Check, you can verify that the fundus image of the
CIRRUS HD-OCT instrument and the OCT scan image overlay are aligned within
specifications as defined by the target inside the Verification Test Tool. Practically, this
means the scan actually is placed where it appears to be placed, based on the fundus
image. You can re–try the check if it does not pass initially.
NOTE: If a performance verification check fails, the data acquired since the last successful
check may not be reliable.
• Frequency: Weekly, or at the beginning of each week you will acquire new scans.
• Time Required for Test: Approximately 2 minutes.
• Verification Test Tool Required: Zeiss provides this tool with each instrument. It
contains fragile parts that must be maintained in their original position for the test
measurements to be accurate.
CAUTION: Handle the Verification Test Tool carefully to avoid dropping. Damage to the
Verification Test Tool can affect test results. If you drop the tool, it is recommended that you
do not use it for testing. Immediately contact Zeiss customer service. In the U.S., call 800–
341–6968. Outside the U.S., contact your local Zeiss distributor.
Install the Verification Test Tool
Install the Verification Test Tool in the correct orientation. The tool has short pegs at upper
left and lower right, and thumbscrews at upper right and lower left. Each of these
corresponds to a hole on the face of the ocular lens housing.
Using only your fingers, turn the screws (clockwise) on top and bottom to secure the tool in
place. To avoid dropping the tool, make sure that both screws are tight before releasing the
tool.
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