Figure 1.
Partial 3-dimensional image of a 12×9 mm scan obtained with DRI-OCT using the instrument's cropping function and showing segmentation of the choroid (A).
Horizontal B scan showing a segmented choroid with thickness measured between the two green demarcated lines (B).
Figure 2.
Example of a 12×9 mm DRI-OCT image of a glaucomatous eye included in the study.
The numbers correspond to the average choroidal thickness (in µm) for each of the 108 1 mm2 regions of the scan.
Figure 3.
Example of the analysis map for the right eye used in the study.
The figure shows the 12×9 mm scan divided into 1 mm2 sectors. The areas used for the calculation of macular choroidal thickness (red), peripapillary choroidal thickness (green) and total choroidal thickness (yellow, red and green) are shown. The numbers represent the row and column co-ordinates for each sector.
Figure 4.
Boxplot illustrating the distribution of total, macular and peripapillary choroidal thickness values in glaucomatous and healthy eyes.
Figure 5.
Distribution of standard automated perimetry (SAP) mean deviation (decibels) in healthy and glaucomatous eyes (A).
Distribution of intraocular pressure (mmHg) in healthy and glaucomatous eyes (B).
Table 1.
Demographic and ocular characteristics of healthy and glaucomatous subjects included in the study.
Figure 6.
Scatter plots showing the relationship between total choroidal thickness and age in healthy eyes (R2 = 0.057, Slope: −0.72 µm/year, P = 0.039) (A) and the relationship between axial length and total choroidal thickness in healthy eyes (R2 = 0.099, Slope: −11.36 µm/year P = 0.027) (B).
Table 2.
Results of the univariable regression analyses evaluating the association between choroidal thickness and clinical variables in healthy eyes.
Table 3.
Results of multivariable analysis for total, macular and peripapillary choroidal thickness in healthy eyes including variables from univariable analysis with P<0.2.
Table 4.
Results of univariable regression analyses evaluating the association between choroidal thickness (total, peripapillary and macular) and demographic and clinical characteristics in healthy and glaucomatous eyes.
Table 5.
Results of multivariable analysis including variables from univariable analysis with P<0.2 for healthy and glaucomatous eyes.