[Perimetry in Neuro-ophthalmological Function Diagnostics: Indication - Methods - Topodiagnostic Aspects].

The assessment of visual field findings is fundamental in neuro-ophthalmological functional diagnostics: By means of perimetry, functional and topodiagnostic considerations in case of unexplained visual loss or suspected lesions of the visual pathway are possible in a non-invasive manner. Repeated examinations allow for functional follow-up of a disease and judgement on the efficacy of a therapeutic procedure. This paper is intended to convey the basics of visual field examination and diagnostics. The focus is on the value of perimetry in neuro-ophthalmological functional diagnostics. Both kinetic and static perimetric methods are addressed. In addition, common examination grids and strategies, as well as interpretation of perimetric recordings and indices for the evaluation of progression analysis, are compared. Scotoma classification and the topodiagnostical relevance of visual field defects are discussed, taking into account quality parameters and plausibility controls.