TY - JOUR
T1 - Influence of sampling window size and orientation on parafoveal cone packing density
AU - Lombardo, Marco
AU - Serrao, Sebastiano
AU - Ducoli, Pietro
AU - Lombardo, Giuseppe
PY - 2013
Y1 - 2013
N2 - We assessed the agreement between sampling windows of different size and orientation on packing density estimates in images of the parafoveal cone mosaic acquired using a flood-illumination adaptive optics retinal camera. Horizontal and vertical oriented sampling windows of different size (320x160 μm, 160x80 μm and 80x40 μm) were selected in two retinal locations along the horizontal meridian in one eye of ten subjects. At each location, cone density tended to decline with decreasing sampling area. Although the differences in cone density estimates were not statistically significant, Bland-Altman plots showed that the agreement between cone density estimated within the different sampling window conditions was moderate. The percentage of the preferred packing arrangements of cones by Voronoi tiles was slightly affected by window size and orientation. The results illustrated the high importance of specifying the size and orientation of the sampling window used to derive cone metric estimates to facilitate comparison of different studies.
AB - We assessed the agreement between sampling windows of different size and orientation on packing density estimates in images of the parafoveal cone mosaic acquired using a flood-illumination adaptive optics retinal camera. Horizontal and vertical oriented sampling windows of different size (320x160 μm, 160x80 μm and 80x40 μm) were selected in two retinal locations along the horizontal meridian in one eye of ten subjects. At each location, cone density tended to decline with decreasing sampling area. Although the differences in cone density estimates were not statistically significant, Bland-Altman plots showed that the agreement between cone density estimated within the different sampling window conditions was moderate. The percentage of the preferred packing arrangements of cones by Voronoi tiles was slightly affected by window size and orientation. The results illustrated the high importance of specifying the size and orientation of the sampling window used to derive cone metric estimates to facilitate comparison of different studies.
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U2 - 10.1364/BOE.4.001318
DO - 10.1364/BOE.4.001318
M3 - Article
C2 - 24009995
AN - SCOPUS:84883315164
VL - 4
SP - 1318
EP - 1331
JO - Biomedical Optics Express
JF - Biomedical Optics Express
SN - 2156-7085
IS - 8
ER -