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Chakravarti, Tutul; Moghadam, Mohamad; Proudfoot, James A.; Weinreb, Robert N.; Bowd, Christopher; Zangwill, Linda M.

Agreement Between 10-2 and 24-2C Visual Field Test Protocols for Detecting Glaucomatous Central Visual Field Defects

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  • Media type: E-Article
  • Title: Agreement Between 10-2 and 24-2C Visual Field Test Protocols for Detecting Glaucomatous Central Visual Field Defects
  • Contributor: Chakravarti, Tutul; Moghadam, Mohamad; Proudfoot, James A.; Weinreb, Robert N.; Bowd, Christopher; Zangwill, Linda M.
  • imprint: Ovid Technologies (Wolters Kluwer Health), 2021
  • Published in: Journal of Glaucoma
  • Language: English
  • DOI: 10.1097/ijg.0000000000001844
  • ISSN: 1057-0829
  • Keywords: Ophthalmology
  • Origination:
  • Footnote:
  • Description: <jats:sec> <jats:title>Precis:</jats:title> <jats:p>Moderate to substantial agreement between 10-2 and 24-2C perimetry for detecting central field defects suggests that adding central test points to the 24-2 protocol may improve efficiency of visual field (VF) testing for glaucoma management.</jats:p> </jats:sec> <jats:sec> <jats:title>Purpose:</jats:title> <jats:p>The purpose of this study was to assess agreement between Humphrey Visual Field Analyzer 10-2 and 24-2C test protocols for detecting glaucomatous defects in the central 10 degrees of the visual field (CVFDs).</jats:p> </jats:sec> <jats:sec> <jats:title>Materials and Methods:</jats:title> <jats:p>VFs from 165 eyes of 18 healthy individuals, 12 glaucoma suspects and 62 glaucoma patients who completed 10-2 and 24-2C VF testing protocols within 6 months were included. CVFDs on 10-2 and 24-2C (within the central 22 points) test grids required a cluster of 3 contiguous points with <jats:italic toggle="yes">P</jats:italic>&lt;5%, 5%, and 1% or &lt;5%, 2%, and 2% within a hemifield on the total deviation (TD) or pattern deviation (PD) plot. Cohen kappa (k) was used to assess agreement between 10-2 and 24-2C test grids in identifying CVFDs. Specificity of each testing strategy was assessed in VFs from healthy eyes.</jats:p> </jats:sec> <jats:sec> <jats:title>Results:</jats:title> <jats:p>CVFDs in suspect and glaucoma eyes were combined and reported as localized to superior, inferior or both hemifields based on TD and PD plots for 10-2 and 24-2C test grids. Moderate to substantial agreement was observed between 10-2 and 24-2C grids for detecting any CVFD from PD (k=0.551) and TD (k=0.651) plots. Specificity was high in healthy eyes ranging from 0.94 to 1.0 for both test protocols.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusion:</jats:title> <jats:p>Substantial agreement for identifying CVFDs using the 24-2C and 10-2 protocols suggests that combining tests by adding central test points to the 24-2 test grid may supplant the need for 2 perimetry regimens for detecting central and peripheral glaucomatous VF damage.</jats:p> </jats:sec>