Research Article

Thickness Mapping of Eleven Retinal Layers Segmented Using the Diffusion Maps Method in Normal Eyes

Table 1

Intrasector thickness variability in 9 macular sectors and in 11 retinal layers.

Mean (std) of standard deviations (µm)
Sector 1Sector 2Sector 3Sector 4Sector 5Sector 6Sector 7Sector 8Sector 9

Layer 18 (2)10 (3)9 (2)11 (3)9 (2)16 (4)13 (4)12 (3)6 (2)
Layer 223 (4)13 (3)12 (2)14 (2)15 (3)16 (3)18 (3)14 (3)14 (2)
Layer 33 (1)4 (1)3 (1)8 (2)7 (1)6 (1)6 (1)6 (1)6 (1)
Layer 412 (2)4 (1)4 (1)5 (1)4 (1)8 (2)6 (1)6 (1)5 (1)
Layer 512 (3)8 (1)6 (1)9 (1)6 (1)7 (1)8 (2)6 (1)7 (1)
Layer 617 (3)9 (1)9 (2)7 (1)7 (1)10 (2)15 (3)10 (1)10 (2)
Layer 77 (1)3 (1)4 (1)4 (1)5 (1)5 (1)5 (1)4 (1)4 (1)
Layer 85 (1)4 (1)5 (1)2 (0)1 (0)4 (1)4 (1)2 (0)3 (1)
Layer 93 (1)2 (1)1 (0)3 (1)1 (0)3 (1)4 (1)2 (0)3 (1)
Layer 103 (1)2 (0)1 (0)2 (0)1 (0)4 (1)2 (0)3 (1)3 (1)
Layer 115 (1)4 (1)4 (1)3 (1)5 (1)6 (1)7 (1)5 (1)7 (1)

The 11 retinal layers were the NFL (layer 1), GCL (layer 2), IPL (layer 3), INL (layer 4), OPL (layer 5), ONL + OLM + HFL (layer 6), ISL (layer 7), CL (layer 8), OSL (layer 9), VM (layer 10), and RPE/BM (layer 11). Sector 1 = fovea; Sector 2 = parafoveal superior, Sector 3 = parafoveal nasal, Sector 4 = parafoveal inferior, Sector 5 = parafoveal temporal; Sector 6 = perifoveal superior, Sector 7 = perifoveal nasal, Sector 8 = perifoveal inferior, and Sector 9 = perifoveal temporal.