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Ophthalmic Physiologic Optic - 2024 - Tong - Exploring the relationship between 24‐2 visual field and widefield optical5.39 MB
Published VersionCC BY V4.0, Open Access
Journal article
Exploring the relationship between 24‐2 visual field and widefield optical coherence tomography data across healthy, glaucoma suspect and glaucoma eyes
Ophthalmic and Physiological Optics, Vol.44(7), pp.1484-1499
2024
Abstract
Purpose
To utilise ganglion cell-inner plexiform layer (GCIPL) measurements acquired using widefield optical coherence tomography (OCT) scans spanning 55° × 45° to explore the link between co-localised structural parameters and clinical visual field (VF) data.
Methods
Widefield OCT scans acquired from 311 healthy, 268 glaucoma suspect and 269 glaucoma eyes were segmented to generate GCIPL thickness measurements. Estimated ganglion cell (GC) counts, calculated from GCIPL measurements, were plotted against 24-2 SITA Faster visual field (VF) thresholds, and regression models were computed with data categorised by diagnosis and VF status. Classification of locations as VF defective or non-defective using GCIPL parameters computed across eccentricity- and hemifield-dependent clusters was assessed by analysing areas under receiver operating characteristic curves (AUROCCs). Sensitivities and specificities were calculated per diagnostic category.
Results
Segmented linear regression models between GC counts and VF thresholds demonstrated higher variability in VF defective locations relative to non-defective locations (mean absolute error 6.10–9.93 dB and 1.43–1.91 dB, respectively). AUROCCs from cluster-wide GCIPL parameters were similar across methods centrally (p = 0.06–0.84) but significantly greater peripherally, especially when considering classification of more central locations (p < 0.0001). Across diagnoses, cluster-wide GCIPL parameters demonstrated variable sensitivities and specificities (0.36–0.93 and 0.65–0.98, respectively), with the highest specificities observed across healthy eyes (0.73–0.98).
Conclusions
Quantitative prediction of VF thresholds from widefield OCT is affected by high variability at VF defective locations. Prediction of VF status based on cluster-wide GCIPL parameters from widefield OCT could become useful to aid clinical decision-making in appropriately targeting VF assessments.
Details
- Title
- Exploring the relationship between 24‐2 visual field and widefield optical coherence tomography data across healthy, glaucoma suspect and glaucoma eyes
- Authors
- Janelle Tong - UNSW SydneyJack Phu - UNSW SydneyDavid Alonso-Caneiro - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringJason Kugelman - Queensland University of TechnologySieu Khuu - UNSW SydneyAshish Agar - Prince of Wales HospitalMinas Coroneo - UNSW SydneyMichael Kalloniatis (Corresponding Author) - UNSW Sydney
- Publication details
- Ophthalmic and Physiological Optics, Vol.44(7), pp.1484-1499
- Publisher
- Wiley-Blackwell Publishing Ltd.
- Date published
- 2024
- DOI
- 10.1111/opo.13368
- ISSN
- 1475-1313; 0275-5408
- Copyright note
- © 2024 The Author(s). Ophthalmic and Physiological Optics published by John Wiley & Sons Ltd on behalf of College of Optometrists. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
- Organisation Unit
- School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 991050795902621
- Output Type
- Journal article
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