Figure 9.

Detection of the lamina cribrosa. (A) Section 257. Prelaminar glial columns appear to correspond to vertical striations in the matched interpolated B-scan (bottom; marked with red arrows). Hematoxylin and eosin. (B) Section 258. The anterior lamina surface delineated with white glyphs. The peripheral insertion of the lamina was not clearly visible in the interpolated B-scan, although the approximate level of insertion could be ascertained by following the contour of the anterior laminar signal to the periphery of the neural canal (white arrows). Masson trichrome. (C) Section 256. Posterior lamina surface delineated with black glyphs in the histologic section. The posterior surface was not detectable in the matched interpolated B-scan, as the signal faded rather than coming to a discrete termination (region highlighted by a white bracket) Luxol fast blue stain. Magnification, ×10.