Cited by 14Retinal Diseases and TreatmentsRetinal Imaging and AnalysisGlaucoma and retinal disorders

Location-Specific Thickness Patterns in Intermediate Age-Related Macular Degeneration Reveals Anatomical Differences in Multiple Retinal Layers

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Trinh, Matt, Khou, Vincent, Kalloniatis, Michael, Nivison-Smith, Lisa·2021·Investigative Opthalmology & Visual Science

Abstract

Purpose: To examine individual retinal layers' location-specific patterns of thicknesses in intermediate age-related macular degeneration (iAMD) using optical coherence tomography (OCT). Methods: OCT macular cube scans were retrospectively acquired from 84 iAMD eyes of 84 participants and 84 normal eyes of 84 participants propensity-score matched on age, sex, and spherical equivalent refraction. Thicknesses of the retinal nerve fiber layer (RNFL), ganglion cell layer (GCL), inner plexiform layer (IPL), inner nuclear layer (INL), outer plexiform layer (OPL), outer nuclear layer + Henle's fiber layer (ONL+HFL), inner- and outer-segment layers (IS/OS), and retinal pigment epithelium to Bruch's membrane (RPE-BM) were calculated across an 8 × 8 grid (total 24° × 24° area). Location-specific analysis was performed using cluster(normal) and grid(iAMD)-to-cluster(normal) comparisons. Results: In iAMD versus normal eyes, the central RPE-BM was thickened (mean difference ± SEM up to 27.45% ± 7.48%, P < 0.001; up to 7.6 SD-from-normal), whereas there was thinned outer (OPL, ONL+HFL, and non-central RPE-BM, up to -6.76% ± 2.47%, P < 0.001; up to -1.6 SD-from-normal) and inner retina (GCL and IPL, up to -4.83% ± 1.56%, P < 0.01; up to -1.7 SD-from-normal) with eccentricity-based effects. Interlayer correlations were greater against the ONL+HFL (mean |r| ± SEM 0.19 ± 0.03, P = 0.14 to < 0.0001) than the RPE-BM (0.09 ± 0, P = 0.72 to < 0.0001). Conclusions: Location-specific analysis suggests altered retinal anatomy between iAMD and normal eyes. These data could direct clinical diagnosis and monitoring of AMD toward targeted locations.

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Authors
Trinh, M., Khou, V., Kalloniatis, M., & Nivison-Smith, L.
Affiliations
  • UNSW Sydney (AU)
  • Centre for Eye Health, University of New South Wales, Sydney, Australia
Venue
Investigative Opthalmology & Visual Science
Published
2021-10-18
Volume
62
Issue
13
Pages
13
ISSN
  • 0146-0404 (ISSN-L)
  • 1552-5783
OpenAlex
W3207663742
Cited by
14
References
146
Citations by year
2026: 4 · 2024: 3 · 2023: 4 · 2022: 2 · 2021: 1
FWCI
2.24
Type
journal article
Language
en
Open access
Locations
  • Investigative Ophthalmology & Visual Science (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Retinal Imaging and Analysis
  • Health Sciences › Medicine › Ophthalmology › Glaucoma and retinal disorders
Keywords
intermediate age-related macular degeneration, retinal thickness, retinal layer thickness, retinal nerve fiber layer, ganglion cell layer, inner plexiform layer, inner nuclear layer, outer plexiform layer, outer nuclear layer, retinal pigment epithelium, Bruch's membrane, retinal anatomy
MeSH terms
Aged, Female, Follow-Up Studies, Humans, Macular Degeneration, Male, Middle Aged, Retinal Ganglion Cells, Retrospective Studies, Visual Acuity, Bruch Membrane, Tomography, Optical Coherence, Retinal Pigment Epithelium, Propensity Score

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