Learning from data: recognizing glaucomatous defect patterns and detecting progression from visual field measurements.

Published

Journal Article

A hierarchical approach to learn from visual field data was adopted to identify glaucomatous visual field defect patterns and to detect glaucomatous progression. The analysis pipeline included three stages, namely, clustering, glaucoma boundary limit detection, and glaucoma progression detection testing. First, cross-sectional visual field tests collected from each subject were clustered using a mixture of Gaussians and model parameters were estimated using expectation maximization. The visual field clusters were further estimated to recognize glaucomatous visual field defect patterns by decomposing each cluster into several axes. The glaucoma visual field defect patterns along each axis then were identified. To derive a definition of progression, the longitudinal visual fields of stable glaucoma eyes on the abnormal cluster axes were projected and the slope was approximated using linear regression (LR) to determine the confidence limit of each axis. For glaucoma progression detection, the longitudinal visual fields of each eye on the abnormal cluster axes were projected and the slope was approximated by LR. Progression was assigned if the progression rate was greater than the boundary limit of the stable eyes; otherwise, stability was assumed. The proposed method was compared to a recently developed progression detection method and to clinically available glaucoma progression detection software. The clinical accuracy of the proposed pipeline was as good as or better than the currently available methods.

Full Text

Duke Authors

Cited Authors

  • Yousefi, S; Goldbaum, MH; Balasubramanian, M; Medeiros, FA; Zangwill, LM; Liebmann, JM; Girkin, CA; Weinreb, RN; Bowd, C

Published Date

  • July 2014

Published In

Volume / Issue

  • 61 / 7

Start / End Page

  • 2112 - 2124

PubMed ID

  • 24710816

Pubmed Central ID

  • 24710816

Electronic International Standard Serial Number (EISSN)

  • 1558-2531

International Standard Serial Number (ISSN)

  • 0018-9294

Digital Object Identifier (DOI)

  • 10.1109/TBME.2014.2314714

Language

  • eng