| Comparison of SITA-standard with full threshold strategy of Humphrey field Analyzer in Glaucoma. |
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Jae Chol Shim, Chan Yun Kim, Young Jae Hong |
1Department of Ophthalmology, National Police Hospital, Seoul, Korea.
2The institute of Vision Research and Department of Ophthalmology, Severance Hospital, Seoul, Korea. kcyeye@yumc.yonsei.ac.kr |
| 녹내장환자에서 Humphrey 자동시야계의 Full threshold와 SITA-standard 방법의 비교 |
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심재철 ( Jae Chol Shim ) , 김찬윤 ( Chan Yun Kim ) , 홍영재 ( Young Jae Hong ) |
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| 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. |
| Key Words:
SITA;Full threshold;MD;PSD |
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