FIGURE 13.

Optical coherence tomography (OCT) images from the patient in Figure 12 with glaucoma progression: Two visits were a year apart: ’06 denotes image from first visit, ’07 denotes image from second visit. A, Time-domain OCT retinal nerve fiber layer (RNFL) thicknesses compared to the normative database. Possible progression is shown inferiorly, but it is difficult to determine if appearance of progression is due to changes in 3.4-mm circle centration between scans. B, RTVue MM7 scans show overall macular scanning, with the superior hemisphere losing more tissue, bringing it more similar to the lower thickness of the inferior hemisphere. C, RTVue RNFL scans can be compared on its software to clearly show progression. RNFL thickness loss can be seen over nearly the entire circle, except inferior nasally. D, RTVue NHM4 RNFL thickness maps show loss overall, especially inferior temporally. E, RTVue optical nerve head (ONH) 3D data sets as 3D visualization also show increased cupping and RNFL tissue loss.