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The topographical relationship between optic disc and visual field in glaucoma

Abstract The spatial relationship between anatomy and function in glaucoma was studied in 15 selected cases of focal damage. Based on planimetric data of the optic disc the anatomical site of damage was defined as the sector with the thinnest neuroretinal rim. Perimetric data were evaluated with regard to 21 regions of the ‘Perimetric Nerve Fibre Bundle Map’ (Weber & Ulrich 1990a). The site of damage was defined as those regions with at least 50% of depressed points. The site of the affected rim and the number of the corresponding Perimetric Nerve Fiber Bundles showed a linear correlation over a limited range of the superior and inferior pole of the disc. A ‘functional disc map’ could be established for 6 perimetric regions.