Comparison of SITA-standard with full threshold strategy of Humphrey field Analyzer in Glaucoma.
- Author:
Jae Chol SHIM
1
;
Chan Yun KIM
;
Young Jae HONG
Author Information
1. Department of Ophthalmology, National Police Hospital, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
SITA;
Full threshold;
MD;
PSD
- MeSH:
Diagnosis;
Glaucoma*;
Humans;
Ocular Hypertension;
Visual Field Tests
- From:Journal of the Korean Ophthalmological Society
2002;43(11):2179-2185
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The Swedish Interactive Thresholding Algorithm (SITA) strategies is a new diagnostic tool of Humphrey automatic perimetry and has been reported to reduce testing time without loss of useful diagnostic information. To test the usefulness of this new diagnostic method, we compared the SITA and full threshold diagnostic method, which had been used previously. METHODS: Forty six patients (46 eyes) who were followed up for glucoma or ocular hypertension were in this study. Autoperimetry was performed using both SITA and full threshold strategies. RESULTS: The SITA showed shorter testing time (7.74+/-1.25 min) than the full threshold (14.4+2.43 min). There were significant differences between the full threshold MD (-8.06+8.11 dB) and SITA MD (-7.45 +/-8.32 dB), as well as full threshold PSD (4.47+/-2.50 dB) and SITA PSD (3.67+/-2.56 dB), when compared with data of greater than -12 dB MD respectively(p<0.05). Two cases showed changed diagnosis in GHT. CONCLUSIONS: SITA is a good test method with short test time. However, changing from full threshold to the SITA method should be reconsidered due to variation in the amount of field defect depending on the damage progression and the possibility of changes in diagnosis.
