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Abstract #72961 Published in IGR 18-4

Investigating the usefulness of a cluster-based trend analysis to detect visual field progression in patients with open-angle glaucoma

Aoki S; Murata H; Fujino Y; Matsuura M; Miki A; Tanito M; Mizoue S; Mori K; Suzuki K; Yamashita T; Kashiwagi K; Hirasawa K; Shoji N; Asaoka R
British Journal of Ophthalmology 2017; 101: 1658-1665

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BACKGROUND/AIMS: To investigate the usefulness of the Octopus (Haag-Streit) EyeSuite's cluster trend analysis in glaucoma. METHODS: Ten visual fields (VFs) with the Humphrey Field Analyzer (Carl Zeiss Meditec), spanning 7.7 years on average were obtained from 728 eyes of 475 primary open angle glaucoma patients. Mean total deviation (mTD) trend analysis and EyeSuite's cluster trend analysis were performed on various series of VFs (from 1st to 10th: VF1-10 to 6th to 10th: VF6-10). The results of the cluster-based trend analysis, based on different lengths of VF series, were compared against mTD trend analysis. RESULT: Cluster-based trend analysis and mTD trend analysis results were significantly associated in all clusters and with all lengths of VF series. Between 21.2% and 45.9% (depending on VF series length and location) of clusters were deemed to progress when the mTD trend analysis suggested no progression. On the other hand, 4.8% of eyes were observed to progress using the mTD trend analysis when cluster trend analysis suggested no progression in any two (or more) clusters. CONCLUSION: Whole field trend analysis can miss local VF progression. Cluster trend analysis appears as robust as mTD trend analysis and useful to assess both sectorial and whole field progression. Cluster-based trend analyses, in particular the definition of two or more progressing cluster, may help clinicians to detect glaucomatous progression in a timelier manner than using a whole field trend analysis, without significantly compromising specificity.

Department of Ophthalmology, The University of Tokyo, Tokyo, Japan.

Full article

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Classification:

6.20 Progression (Part of: 6 Clinical examination methods)

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