4-10
TEST PARAMETERS AND STRATEGIES
REV.B 02/03 PN 51680-1
HUMPHREY FIELD ANALYZER
II -
i
series
SITA
™
TESTING
Perimetry results are critical in the management of glaucoma and other eye diseases.
Yet,
obtaining useful results with existing protocols is often difficult to manage. Conventional
threshold tests are often long and uncomfortable for patients. They tie-up staff and tire out
patients, thus decreasing test reliability. The SITA testing strategy represents a major advance
over the methods currently in use.
Carl Zeiss Meditec has developed two separate SITA testing strategies with two separate goals:
1. SITA Standard:
The goal was to design a perimetric thresholding method which
collects twice as much information per unit time as the Humphrey Full Threshold
standard algorithm. SITA Standard cuts the test time in half without compromising
test reproducibility relative to the current international standard.
2. SITA Fast:
The goal was to design a thresholding method which collects twice as
much information per unit time as FastPac. SITA Fast cuts the test time in half relative
to FastPac, without compromising test reproducibility.
Tests available with SITA
Both SITA Standard and SITA Fast are designed to run with these threshold tests:
• Central 10-2
• Central 24-2
• Central 30-2
• Peripheral 60-4
SITA cannot be used with Blue-Yellow (SWAP) testing or for Custom tests.
All SITA tests must use a White, Size III stimulus. Any time a SITA strategy is used, these two
parameters will be automatically set by your HFA II.
File directory indication
On the File Directory screens, the SITA Standard tests will be indicated by the letters
“SS” and SITA Fast tests will be indicated by the letters “SF”. Example: SF-30-2.
Floppy disk storage
SITA generates and utilizes significantly more data. Therefore, SITA tests use more disk
space than is required when storing Full Threshold or FastPac tests. Floppy disks with SITA
tests stored on them may hold as few as 100 tests. The maximum number is 500 tests.
Note: Additional information on SITA can be found in Section 7: “SITA Printout Formats”
and Appendix G: “How SITA Works”.
4.htp
3/14/03, 3:13 PM
10
Содержание HUMPHREY 720i
Страница 1: ...HUMPHREY FIELD ANALYZER II i series USER S GUIDE Model 720i Model 740i Model 745i Model 750i...
Страница 4: ......
Страница 26: ...1 18 INTRODUCTION INSTRUMENT SETUP REV B 02 03 PN 51680 1 HUMPHREY FIELD ANALYZER II i series...
Страница 116: ...6 8 TEST RELIABILITY REV B 02 03 PN 51680 1 HUMPHREY FIELD ANALYZER II i series...
Страница 208: ...10 20 CUSTOM TESTING REV B 02 03 PN 51680 1 HUMPHREY FIELD ANALYZER II i series...
Страница 284: ...12 14 CARE AND CLEANING REV B 02 03 PN 51680 1 HUMPHREY FIELD ANALYZER II i series...
Страница 327: ......
Страница 328: ......