Fourth International Visual Field Symposium Bristol, April 13-16,1980

ISBN-13: 9789400986466 / Angielski / Miękka / 2011 / 416 str.

E. L. Greve; G. Verriest

Opis

The 4th International Visual Field Symposium of the International Perimetric Society, was held on the 13-16 April 1980 in Bristol, England, at the occasion of the 6th Congress of the European Society of Ophthalmology. The main themes of the symposium were comparison of classical perimetry with visual evoked response, comparison of classical perimetry with special psychophysi cal methods, and optic nerve pathology. Understandably many papers dealt with computer assisted perimetry. This rapidly developing subgroup of peri metry may radically change the future of our method of examination. New instruments were introduced, new and exciting software was proposed and the results of comparative investigations reported. There have been many confusing statements in the literature on the relative value of perimetry and the registration of visual evoked responses. Several reports attempted to bring some clarity in this issue. There is reason for further comparative research. A number of papers dealt with special psychophysical methods, i.e. methods not using the simply monocular differential threshold. The old critical fusion frequency received new attention. Fundusperimetry was used for testing spatial summation. Acuity perimetry, binocular perimetry etc. showed that there exist many possibilities for examining visual function. At present it is not clear to us what exactly the place of these methods is in our diagnostic armament. However it is quite clear that some of them are promising and may lead to a further differentiation of perimetric methods."

Spis treści

one: Computer assisted perimetry.- Automatic perimeter with graphic display.- Statistical program for the analysis of perimetric data.- Changes of glaucomatous field defects. Analysis of OCTOPUS fields with programme Delta.- The peritest.- Detectability of early glaucomatous field defects. A controlled comparison of Goldmann versus Octopus perimetry.- Visual field in diabetic retinopathy (DR).- Detection and definition of scotomata of the central visual field by computer methods.- A clinical comparison of three computerized automatic perimeters in the detection of glaucoma defects.- Capabilities and limitations of automated suprathreshold static perimetry.- Reliability of visual field examination in clinical routine.- two: Psychophysical and visually evoked electrical responses.- Psychophysical and electrophysiological determinants of motion detection.- Perimetry and pattern — VECP in chiasmal lesions.- Visual field (VF) versus Visual evoked cortical potential (VECP) in multiple sclerosis patients.- Quantitative perimetry in optic subatrophy from previous optical neuritis in multiple sclerosis.- Differences in the visual evoked potentials between normals and open-angle glaucomas.- three: Special psychophysical methods.- Patterns of visual field alterations for liminal and supraliminal stimuli in chronic simple glaucoma.- Receptive field-like properties tested with critical flicker fusion frequency. Perimetrie analysis.- Flicker fusion in pericoecal area.- Acuity perimetry.- Visual field studies with fundus photo-perimeter in postchiasmatic lesions.- Flicker fusion and spatial summation.- The Aulhorn-extinction phenomenon. Suppression scotomas in normal and strabismic subjects.- Spatial summation in the foveal and parafoveal region.- Comparison of spatial contrast sensitivity with visual field in optic neuropathy and glaucoma.- Richard-Cross-Lecture.,Early disturbances of colour vision in chronic open angle glaucoma.- four: Colour perimetry.- Is clinical colour perimetry useful?.- Extrafoveal stiles’ ?5-mechanism.- An instrument for the establishment of chromatic perimetry norms.- Fully-photopic and -scotopic spatial summation in chromatic perimetry.- A comparison between white light and blue light on about 70 eyes of patients with early glaucoma using the Mark II Visual Field Analyser.- An attempt of flicker perimetry using coloured light in simple glaucoma.- Subclassifications of retinitis pigmentosa from two-colour scotopic static perimetry.- A report on colour normals on the Friedmann Mark II Analyser.- five: Instruments and strategies.- The sine-bell screener.- The sine-bell stimulus in perimetry.- Central field screener. A new tool for screening and quantitative campimetry.- A new screening method for the detection of glaucomatous field changes. The flicker triple circle method.- Prototype campimeter AS-2 and its applicability with both eyes open.- An evaluation of the Friedmann analyser Mark II.- six: Optic nerve.- Optic nerve function in the toxic amblyopias and related conditions.- Fundus controlled perimetry in optic neuropathy.- The pericoecal area in optic sub-atrophy.- Kinetic perimetry (in the plateau region of the field) as a sensitive indicator of visual fatigue or saturation-like defects in retrobulbar anomalies.- Static and acuity profile perimetry in optic neuritis.- Visual field loss and pupillary dysfunction (abstract).- Hereditary dominant optic atrophy.- seven: Visual field defects in various diseases.- Residual field changes in patients with idiopathic central serous retinopathy.- Visual field defect characteristics in cases of hyperprolactinaemia.- Correlation between the stereographic shape of the disc excavation and the visual field of glaucomatous eyes.- The frequency distribution of early visual field defects in glaucoma.- Visual field investigation in cerebrovascular accident.- Refraction scotomata and absolute peripheral sensitivity.- eight: Varia.- Screening of visual field defect among healthy adults. A preliminary trial of population survey of ocular disease.- Grids for functional scoring of visual fields.- A procedure for the computer coding of visual fields.- Relationship between fundus densitometric analysis and perimetry.- The normal pericoecal area. A static method for investigation.- Authors index.