Comparison of flicker perimetry and standard visual fields in brain-damaged patients
Parsons, O.A.; Chandler, P.J.; Teed, R.W.; Haase, G.R.
Acta Neurologica Scandinavica 42(2): 207-212
1966
ISSN/ISBN: 0001-6314 PMID: 5935179 DOI: 10.1111/j.1600-0404.1966.tb01176.x
Accession: 024367502
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Summary
A quantitative method for identifying visual impairment associated with brain-damage, based on plotting visual fields by means of thresholds for a flickering light, has been developed. Comparison was made of inferences independently derived from the above method and from standard visual fields in 50 brain-damaged patients as regards the questions: abnormal or normal visual fields and if abnormal, central or peripheral? The flicker perimetry index indicated 82% of the patients had abnormal visual fields; 80% were judged as centrally determined. A Board Ophthalmologist interpreting the standard visual fields declared 50% to have abnormal fields and 16% to be centrally determined. Both sets of statements were made independently of the case history.