Zeiss HUMPHREY 720i, User Manual

Page: 142 / 328

7-26 STATPAC ANALYSIS & PRINTING RESULTS
REV. B 02/03 PN 51680-1 HUMPHREY FIELD ANALYZER II -
i
series
SCREENING
PRINTOUT
FORMATS
It is the test strategy used in each screening test that determines the format of the printed test
results (see Table 7.3).
Table 7.3: Screening Printout Formats: All Screening Test Patterns
Strategy Format Description
Two Zone Points seen O
Points missed
■
Three Zone Points seen O
Relative defect X
Absolute defect
■
Quantify Defects Points seen O
Numbers (in dB) show depth of defect
When you have tested both the right and left eyes for the same patient, you have the option of
printing a single screening test per page (referred to as “Screening Test” on printout selection
menu), or a combination of the right and left eye on one page (referred to as “Both Eyes”). To
obtain the screening printout for both eyes, screening tests may be central or peripheral but
not full field patterns (see Example 7.14). The printout of both eyes is also known as the
“O. U. Printout”.
The Quantify Defects Full Field screening test is printed on two pages. The first page consists of
the Full Field printout. The second page is an enhanced view of the Central 30 degrees,
allowing for easier reading of the central portion of the printout. If there are no defects
quantified in the Central 30 degrees, the printout will only be one page long. The printout will
be in the full field format.
Reading screening test The type of test and test parameters are printed at the top of the printout along with the patient
printouts data, test date and test time. Like threshold test printouts, screening printouts include reliability
indices to help you determine the reliability of the patient’s responses.
When a screening test uses the Threshold Related testing mode, the central (and peripheral)
reference level values are determined from patient responses and appear on the printout and
test screen. When the Age Corrected mode is used, the central (and peripheral) reference
levels display values based on the patient’s age.
7.htp 3/14/03, 3:17 PM 26