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D. Kourkoutas, Y.M. Buys, J. Flanagan, W. Hatch, E. Eskander, G.E. Trope; Comparison of Disease Progression in Glaucoma using the HRT and Expert Optic Nerve Head Assessment of Stereophotos . Invest. Ophthalmol. Vis. Sci. 2004;45(13):3354.
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Purpose: To compare disease progression in glaucoma using Heidelberg Retinal Tomography (HRT) and expert optic nerve head (ONH) assessments of stereophotos Methods:One eye of 56 subjects with glaucomatous optic neuropathy was reviewed using HRT examinations and ONH stereophotos. The ONH stereophotos were assessed twice for glaucomatous progression by two expert observers (GT & YB). The experts were considered to be ‘in agreement’ if the results were the same in at least 3 out of 4 assessments. Progression on the HRT was defined as a cluster of 20 or more superpixels, showing topographic change outside the normal limits (excluding vessels), on 3 consecutive visits. The expert observers’ assessments were used as the ‘reference standard’ to determine the sensitivity and specificity of the HRT analysis Results:
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