Fig 1.
Example of the segmentation applied to each macula OCT image including the retinal layer boundaries: The internal limiting membrane (ILM), the ganglion cell layer (GCL)/nerve fibre layer (NFL) boundary, the inner nuclear layer (INL)/inner plexiform layer (IPL) boundary, the outer plexiform (OPL)/inner nuclear layer (INL) boundary, the external limiting membrane (ELM), the inner boundary of the inner segment ellipsoid band (ISe), and the outer boundary of the retinal pigment epithelium (RPE).
Also shown are the total retinal thickness (TRT) measurement, and the individual layer thickness measurements including the inner retinal layers (the NFL, the IPL + GCL, and the INL), and the outer retinal layers (the outer nuclear layer (ONL) + OPL, the inner segment (IS), and the RPE to ISe layer).
Table 1.
Demographic information and ocular biometric measures of the Aboriginal and/or Torres Strait Islander children and non-Indigenous children.
Fig 2.
Thickness maps illustrating the average thickness of (A) the total retina, (B) the inner retinal layers, and (C) the outer retinal layers, across a 5 mm zone.
Table 2.
Mean total retinal thickness (TRT) in each retinal zone and meridian, for all participants.
Fig 3.
The relationship between the average macular retinal thickness and axial length (top) and between the average macular retinal thickness and spherical equivalent refraction (bottom) for Aboriginal and/or Torres Strait Islander children (left, blue symbols) and non-Indigenous children (right, red symbols).
Fig 4.
Thickness maps illustrating the mean TRT for (A) Aboriginal and/or Torres Strait Islander children, (B) non-Indigenous children, and (C) the difference between the two groups.
Cooler colours (negative values) in the thickness difference map represents a thinner retina among Aboriginal and/or Torres Strait Islander children.
Table 3.
Mean total retinal thickness (TRT) across the entire 5 mm zone, and in each retinal zone for Aboriginal and/or Torres Strait Islander children and non-Indigenous children, and results of pairwise comparisons.
Table 4.
Retinal thickness measurements of each retinal layer within the inner and outer retina, by retinal zone, and comparisons by Indigenous status.
Fig 5.
Mean inner retinal layer thickness (top) and outer retinal layer thickness (bottom) for (A) Aboriginal and/or Torres Strait Islander children and (B) non-Indigenous children, and (C) the differences between the two groups.