. Author manuscript; available in PMC: 2019 Jun 6.

Published in final edited form as: IEEE Trans Med Imaging. 2015 Nov 30;35(4):988–999. doi: 10.1109/TMI.2015.2504440

TABLE III. Test-retest reproducibility of the manual delineation of the LC and sclera.

“Measurements” shows the mean ± standard deviation (SD) of measured scleral thickness, LC thickness, and anterior LC contour length obtained from 5 independent measurements using the scans of Pig B’s ONH at 6mmHg. The uncertainty arising from contour delineations translated into a relative uncertainty in strain estimation, here estimated by the ratio SD÷mean.

	Scleral thickness	LC thickness	Anterior LC arc length

Measurements	1063 ± 20 μm	293 ± 16.3 μm	3880 ± 41 μm

lower bound of the relative uncertainty in strain^*	1.8%	5.5%	1.1%

Additional potential imaging-related uncertainties are not included in this estimate. Delineations were always performed by the same author (BC).