Practices With Multiple Humphrey Field Analyzers; Care And Handling Of Removable Storage Media - Zeiss HUMPHREY 720i User Manual

9-22
PRACTICES WITH
MULTIPLE FIELD
ANALYZERS
CARE AND
HANDLING OF
REMOVABLE
STORAGE MEDIA
REV. B 02/03 PN 51680-1
Some offices have more than one HFA II to serve their patients. Some practices have more than
one office. It is often convenient to keep the same patient test data on every instrument. This
way, returning patients may be tested on any of the practice's HFA IIs and each instrument will
have a complete record of previous tests. This is especially important when you desire an
Overview or Glaucoma Change Probability printout which displays multiple visual field results.
Having all patient data on all instruments also ensures that test results are safeguarded against
accidental erasure or database problems with a different instrument.
Carl Zeiss Meditec recommends the following method to maintain identical patient databases
on multiple HFA IIs:
1. Keep a floppy disk in the floppy drive of each instrument.
2. Every two weeks, remove the floppy disk from each HFA II.
3. Copy its contents onto the hard drive of each of the other instruments.
A. From the File Functions screen, choose COPY TESTS.
B. Set the Source to FLOPPY and the Destination to HARD DRIVE.
C. Select PROCEED.
D. Press SELECT ALL.
E. Choose PROCEED.
4. When the copying is completed, return the floppy disk to its original HFA II.
Note: If there are tests on the floppy disk that have been previously copied to the hard disk,
these tests will be recopied to the hard drive without creating any duplicate tests.
If all of the HFA II's are kept current, the weekly magneto-optical backup (where available)
will only need to be performed on one of the HFA II's. Backing up another HFA II, however,
provides additional security by creating a second copy to store off site.
Both magneto-optical and floppy disks magnetically encode data. This delicate information can
easily be corrupted or erased. When handling or storing removable media, follow the warnings
below:
• Do not expose removable media to a magnetic field. Keep all magnets at least five feet
away.
• Do not expose removable media to temperatures above 120° F (50° C) or below 50° F
(10° C).
• Never tamper with the insides of a disk.
• Never get removable media wet.
• Do not write protect removable media before performing restorations from them.
• Only use high quality 1.44 MB "Double-Sided, High-Density" floppy diskettes.
DATABASE MANAGEMENT
HUMPHREY FIELD ANALYZER II - i series