Derivation of human retinal cell densities using high‐density, spatially localized optical coherence tomography data from the human retina

This study sought to identify demographic variations in retinal thickness measurements from optical coherence tomography (OCT), to enable the calculation of cell density parameters across the neural layers of the healthy human macula. From macular OCTs (n = 247), ganglion cell (GCL), inner nuclear (...

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Bibliographic Details
Published in:Journal of comparative neurology (1911) 2023-08, Vol.531 (11), p.1108-1125
Main Authors: Tong, Janelle, Khou, Vincent, Trinh, Matt, Alonso‐Caneiro, David, Zangerl, Barbara, Kalloniatis, Michael
Format: Article
Language:English
Subjects:
Age
Cell density
Demography
Humans
Macula Lutea - diagnostic imaging
Macula Lutea - pathology
Neurons
Regression analysis
Retina
Retina - pathology
Tomography
Tomography, Optical Coherence - methods
Variation
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Summary:This study sought to identify demographic variations in retinal thickness measurements from optical coherence tomography (OCT), to enable the calculation of cell density parameters across the neural layers of the healthy human macula. From macular OCTs (n = 247), ganglion cell (GCL), inner nuclear (INL), and inner segment–outer segment (ISOS) layer measurements were extracted using a customized high‐density grid. Variations with age, sex, ethnicity, and refractive error were assessed with multiple linear regression analyses, with age‐related distributions further assessed using hierarchical cluster analysis and regression models. Models were tested on a naïve healthy cohort (n = 40) with Mann–Whitney tests to determine generalizability. Quantitative cell density data were calculated from histological data from previous human studies. Eccentricity‐dependent variations in OCT retinal thickness closely resemble topographic cell density maps from human histological studies. Age was consistently identified as significantly impacting retinal thickness (p = .0006, .0007, and .003 for GCL, INL and ISOS), with gender affecting ISOS only (p 
ISSN:0021-9967
1096-9861
DOI:10.1002/cne.25483