Diagnostic ability of inner macular layers to discriminate early glaucomatous eyes using vertical and horizontal B-scan posterior pole protocols - Fig 2

<p><b>Representative optical coherence tomography (OCT) vertical scan section of the macula of a normal (A and B) and early glaucomatous (C and D) left eye</b>. Macular ganglion cell layer (mGCL) is marked with two asterisks, and retinal nerve fiber (mRNFL) layer is marked with one asterisk, in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0198397#pone.0198397.g001" target="_blank">Fig 1B</a> (healthy eye) and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0198397#pone.0198397.g001" target="_blank">1D</a> (glaucomatous eye). The automated segmentation performed by the OCT Spectralis software between mRNFL and mGCL is shown with a light blue line; and the one between mGCL and inner plexiform layer is shown with a purple line. The arrow indicates superior zone, and fovea position (Fo) is also pointed out. We can appreciate a slight thinning of mRNFL in the glaucomatous eye, especially inferiorly to the fovea. The infrared image obtained with the Vertical Posterior Pole protocol of Spectralis OCT is shown in the lower left corner of each B-scan. The green lines of the infrared image delimit the square scanning area at the posterior pole.