Table 5.
Optical coherence tomography angiography (OCTA) measurements of the optic disc of enrolled eyes: differences between healthy eyes and dementia with Lewy Bodies (DLB) eyes
| OCT-A measurements (mean ± SD or median and IQR) |
Total (n = 66) | Control eyes (n = 36) | DLB eyes (n = 30) | p-value |
|---|---|---|---|---|
| HD Angio-Disc | ||||
| Whole Image Density | 47.2 ± 3.3 | 47.8 ± 2.6 | 46.6 ± 3.9 | 0.163* |
| Inside Disc Density | 49.6 ± 4.5 | 49.7 ± 4.5 | 49.4 ± 4.7 | 0.730* |
| Peripapillary Density | 49.8 (47; 52.7) | 51.4 (47.7; 53.4) | 47.9 (45.9; 51.9) | 0.013† |
| ONH | ||||
| Average pRNFL | 93 (85; 99) | 96 (92; 99) | 86.5 (81; 95) | 0.001† |
| Superior | 93.5 (88; 100) | 97 (92; 100) | 90 (84; 100) | 0.002† |
| Inferior | 91 (81; 99) | 94 (89; 100.5) | 85 (76; 95) | 0.003† |
*Unpaired t-test, †Mann-Whitney U test
P-values < 0.05 are given in bold-italic entries
ONH: Optic Nerve Head; pRNFL: peripapillary Retinal Nerve Fibre Layer