CIRRUS HD-OCT User Manual 2660021169012 Rev. A 2017-12The Importance of Good Clinical Workflow 5-15 Clinical WorkflowThe Importance of Good Clinical WorkflowPatient Good PracticesA session for collecting images typically takes several minutes for each eye. Aligning thepatient and optimizing the scan account for most of the session time. The patient may restbetween scans as needed.Specific to Iris Imaging• Center the iris image within the pupil, unless a slight offset is required for retina tilt orto avoid opacity.• Focus on the iris detail.Specific to Fundus Imaging• Ensure the focus is sharp and clear with good visibility of the branching blood vessels.• Center the scan overlay on the fovea for macular scans and on the optic nerve headfor optic disc scans.• Ensure uniform illumination without dark corners.• Eliminate or reduce artifacts that may cast shadows on the OCT scans.• Attempt to move floaters away from the region of interest by asking the researchsubject to look up, down, and from side to side.• Minimize corneal opacities by realigning the pupil.Daily TasksStart of DayEach day that the CIRRUS HD-OCT system is to be used the following steps must befollowed:1. Start the CIRRUS HD-OCT instrument2. Wait for the system check to complete. If the system check passes with a non–criticalerror, such as inadequate hard drive or network archive space, click Continue, andthen log on to the application. Scanning can proceed with inadequate local storagespace, as long as the scans can be archived elsewhere when the system is shut down.NOTE: Login to the software. You must be assigned an account by the SystemAdministrator to use the softwareNOTE: You may need to archive scans before acquiring new scans. If archive storage isinadequate, you can acquire new scans but will be prompted to archive all unarchivedscans when shutting down the system. Or if a Database, Installation Files, or Instrumentfailure occurs, you will not be able to use the instrument. Contact your Zeiss representative.
