Drusen | Cone metrics | SD-OCT | |||||||||||
ID number | Eye | Horizontal druse size (µm) | Vertical druse size (µm) | Druse appearance: number of drusen* | Number of cones | Cone density (cones/mm2) | NND (µm) | Regularity† (%) | RPE-complex thickening‡ (µm) | ||||
Over druse | Around druse§ | Over druse | Around druse | Over druse | Around druse | Over druse | Around druse | ||||||
5008 | OD | 22.1 | 22.1 | Round: 1 | 41 | 40 | 54 572 | 52 908 | 3.56 | 3.61 | 90 | 94 | – |
5009 | OS | 23.7 | 23.7 | Round: 1 | 19 | 17 | 22 072 | 19 517 | 5.42 | 5.73 | 84 | 93 | – |
5009 | OS | 23.7 | 23.7 | Round: 1 | 9 | 11 | 10 455 | 12 779 | 6.75 | 7.07 | 89 | 93 | – |
5005 | OD | 26.6 | 23.6 | Oval: 1 | 10 | 13 | 11 674 | 14 943 | 5.46 | 5.90 | 90 | 88 | 4 |
5009 | OS | 26.6 | 26.6 | Round: 1 | 10 | 13 | 11 617 | 14 812 | 7.10 | 5.94 | 90 | 90 | – |
5010 | OS | 30.6 | 33.7 | Round: 1 | 13 | 13 | 12 772 | 12 527 | 5.45 | 6.54 | 92 | 94 | 7 |
5001 | OD | 30.8 | 30.8 | Round: 1 | 20 | 21 | 21 379 | 21 914 | 5.25 | 5.33 | 90 | 89 | 4 |
5013 | OD | 32.0 | 29.1 | Round: 1 | 9 | 11 | 9 785 | 11 416 | 6.17 | 6.43 | 67 | 90 | – |
5014 | OD | 33.5 | 33.5 | Round: 1 | 32 | 33 | 28 416 | 28 949 | 4.65 | 4.72 | 84 | 93 | – |
5001 | OS | 34.0 | 40.2 | Lobular: 2 | 38 | 41 | 27 822 | 29 872 | 4.60 | 4.68 | 92 | 94 | 7 |
5012 | OD | 36.1 | 27.8 | Oval: 1 | 117 | 118 | 30 979 | 32 727 | 4.11 | 4.11 | 87 | 85 | – |
5007 | OS | 39.2 | 51.3 | Lobular: 2 | 39 | 42 | 19 280 | 20 763 | 5.17 | 5.67 | 87 | 95 | 8 |
5008 | OD | 55.3 | 33.2 | Lobular: 3 | 31 | 34 | 16 895 | 18 530 | 5.94 | 5.79 | 100 | 90 | 4 |
5012 | OD | 61.1 | 36.1 | Lobular: 3 | 31 | 33 | 52 892 | 53 495 | 3.63 | 3.70 | 95 | 97 | 4 |
↵*Suggested number of drusen that have fused together.
↵†Regularity is the percentage of cones with 5, 6 or 7 neighbours.
↵‡Difference in RPE complex thickness measured in drusen area and RPE complex thickness in the control area.
§Control area, mean of 4–6 adjacent locations where a contiguous cone mosaic was clearly visible.
NND, nearest neighbour distance; OD, oculus dexter; OS, oculus sinister; RPE, retinal pigment epithelium cell.