Zeiss humphrey HFA II-i series, Руководство по обслуживанию на месте

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FA2i-015 Page 3
correct the files of previously conducted tests. You must follow the steps as indicated in the
“Action Required” section above to correct the files of previously conducted tests.
Suggested ways to examine your database for suspect files
You may wish to sort your file directory in alphabetical and/or chronological order and then
review the directory for any suspect files. For instance, if Patient A has 2 files for one eye for a
given test date (i.e., a right eye test plus two left eye tests) or if Patient B only has one file for a
given test date, or if you know a given patient was examined on a particular date, but you cannot
find a file under his/her name for that date - you may want to investigate further. You may sort
your file directory by completing the following steps: Main Menu>File Functions>View
Tests>Select the Source (Hard Drive, Floppy Drive)>Select Directory Order (Alphabetical or
Chronological)>Proceed.
Item 2:
“Date/Time” Issue
Again, under a highly specific set of unusual circumstances, it is possible to have an invalid test date
associated with a patient’s visual field test performed on the Humphrey Field Analyzer II -
i series with
system software revisions C2, C3 or C3_MO. In the event this occurs, no test date or an incorrect test
date would be printed on the patient’s visual field test results and it could calculate an invalid age for the
patient tested. This does not affect tests transferred to an HFA II -
i series instrument from an HFA II or
an HFA I instrument.
The STATPAC™ analysis package compares a patient’s visual field to a normative database of visual
fields from similarly aged patients. If the instrument did not calculate the patient’s age properly, the
STATPAC analysis and printout could be incorrect.
Screening tests performed with the Test Mode set to “Age Corrected” could also be affected by the
“Date/Time” issue. If the instrument did not calculate the patient’s age properly, the hill of vision
assigned to the patient (which is based on the patient’s age) could be incorrect.
Action Required:
Install system software revision 3.2; perform evaluation of test dates;
correct files as needed. Repeat screening tests performed with the
Age Corrected test mode.
In an effort to assist you in determining what files, if any, are affected by the date/time issue, the
enclosed system software revision 3.2 contains a quick, easy-to-use utility called “Evaluate Test
Dates”. You may use this utility to evaluate your HFA II -
i series database contained on a floppy
disk and/or a hard drive.
Upon performing this evaluation, a printout will be automatically generated that displays a summary
of its findings. The printed summary will contain information such as the number of files examined,
the number of HFA II -
i series files, and the number of files flagged, if any, that are considered to
have “Questionable Test Dates”. The files with “Questionable Test Dates” are those that may have
been affected by the “Date/Time” issue.
If any files are flagged, a printed file directory will display the details of each questionable file
(patient’s name, patient’s date-of-birth, eye tested, test type, test time, and test date) so that you may
review the file. The printed summary will also contain directions on how to update the date on the
file, if needed. The average time to complete the evaluation is less than 7 minutes.