Weber J, Ulrich H
University of Cologne, Dept. of Ophthalmology, FRG.
Int Ophthalmol. 1991 May;15(3):193-200. doi: 10.1007/BF00153928.
The so-called 'nerve fiber bundle defects' in the visual field are considered as being the functional equivalent of retinal nerve fiber bundle damage. This study examines the course and the position of scotoma borders in 159 visual fields with complete nerve fiber bundle defects using high resolution test point patterns. The scotoma border lines were averaged geometrically. The result is presented in the form of mean vectors. This functional map of nerve fiber lines shows a close correspondence to the anatomical course of the retinal nerve fibers. To make the result suitable for topographical analysis of visual fields, 21 areas ('Perimetric Nerve Fiber Bundles') are defined. Certain arbitrary assumptions were necessary because data were to scanty in some nasal regions. Also, the lines had to be fitted into a rectangular grid to be transferable to standard perimetric patterns. Topographical analysis on the basis of these areas may be useful for the evaluation of visual fields, particularly those of glaucoma.
视野中所谓的“神经纤维束缺损”被认为等同于视网膜神经纤维束损伤。本研究使用高分辨率测试点图案，检查了159个存在完整神经纤维束缺损的视野中暗点边界的走向和位置。暗点边界线进行了几何平均。结果以平均向量的形式呈现。这种神经纤维线的功能图谱与视网膜神经纤维的解剖走向密切对应。为使结果适用于视野的地形分析，定义了21个区域（“视野计神经纤维束”）。由于某些鼻侧区域的数据非常少，所以需要一些任意假设。此外，这些线必须拟合到一个矩形网格中，以便能够转换为标准视野计图案。基于这些区域的地形分析可能有助于视野评估，尤其是青光眼的视野评估。
