HFA3 Instructions for Use
2660021166131 Rev. A 2018-11
4-3
Some EMR systems allow records that are missing key identifying information. The HFA3 will
automatically add a default (Unknown) for missing names, but will reject patient records that do not
contain a Patient ID or DOB.
When the same patient has multiple records, reports that include multiple exams, such as a GPA
Summary report, will not include all of the patient’s data. This may happen, for example, when a
practice implements an EMR after records already exist on the HFA3. Each existing patient’s new
EMR record will then need to be merged with the local record the first time the patient is scheduled
for an exam after the EMR is implemented. To merge two patient records, see
. Merging patients can be done before or after testing; however, if it is done
after testing, any reports that include data from multiple exams must be manually regenerated to
include all available exams for the patient.
Caution: Every patient has an identifier that consists of Name, Date of Birth, Patient ID, and Issuer
of ID. To avoid unintentional automatic merging of patient records, VERIFY a unique combination of
Name, Date of Birth, Patient ID, and Issuer of ID exists when patients are copied, transferred,
retrieved from an archive, or restored from a backup.
Enter Distance Prescription and Trial Lens Data (Optional)
If this is the patient’s first visual field test, enter the patient’s Distance Prescription values for
Sphere, Cylinder, and Axis in the corresponding text fields for each eye. For negative prescriptions
you must enter a minus (–) as the first character. To delete any entry select the value then select the
icon. Invalid entries will display a red outline. Select the text box to view an error message.
Previously entered prescription values will appear automatically.
The HFA3 automatically calculates and displays Trial Lens values. You can manually override the
Trial Lens value by typing in the desired value, which will then be displayed in blue font. To calculate
Trial Lens values manually, see
“Determine Trial Lens,” on page B-1
Trial Lens data will be labeled Liquid Trial Lens if the Liquid Trial Lens feature is installed on the
instrument in place of the manual trial lens holder. This feature is only available on Model 860 and
automatically adjusts the lens to the entered prescription. The Liquid Trial Lens does not correct
cylinder prescriptions, but you are able to substitute the spherical equivalent within the range of
+8.00 and –8.00 diopters (D). To have the trial lens correction include cylindrical correction or for
out of range values, use manual trial lenses (see
“Replace the Liquid Trial Lens with the Manual Trial
Lens Holder (Model 860 only),” on page 4-5
). We recommend using manual trial lenses for
cylindrical refractive errors >1.75 D.
Note: If there is no prescription, place the Liquid Trial Lens holder in the down position or enter a
value of zero (0). If the Distance Prescription fields are left blank they are interpreted as 0 and the
Liquid Trial Lens will automatically add an age correction and apply that lens power. Be sure to
enter the patient’s Distance Prescription as this will avoid the need to enter the prescription at each
visit. Do not touch the Liquid Trial Lens if the icon is flashing red
.
Test Setup
Select the Test
For an existing patient the previous test information is automatically loaded and displayed.
Otherwise, the 24-2 SITA FASTER is the default test. For Modality Work Lists, if the patient has
multiple procedures scheduled for the same day, select a test from the list. In the absence of any
previous test information the default test profile is displayed. See
