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The interpretation of the differential threshold in the central visual field

Wild, John M., Wood, Joanne M., Flanagan, John G., & Crews, S. James (1986) The interpretation of the differential threshold in the central visual field. Documenta Ophthalmologica, 62(2), pp. 191-202.

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Abstract

Computer assisted perimetry has revolutionised the investigation of the visual field. Experience of central field assessment with the Octopus Automated Perimeter shows that sensitivity recorded with target size 3 across all age groups can frequently be greater than the published normative values. Use of the latter values can therefore provide a serious underestimation of field loss. Inter-individual variation in sensitivity is found within and between age groups. The limitations associated with the use of the measurement error to define abnormality and the additional problems of hypernormal thresholds and resolution of the blind spot are discussed. It is suggested that methods should be developed to evaluate sensitivity on an intra-individual basis.

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ID Code: 11903
Item Type: Journal Article
Additional Information: For more information, please refer to the journal’s website (see hypertext link) or contact the author.
DOI: 10.1007/BF00229130
ISSN: 1573-2622
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300) > Vision Science (111303)
Divisions: Current > Research Centres > Centre for Health Research
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 1986 Springer
Copyright Statement: The original publication is available at SpringerLink http://www.springerlink.com
Deposited On: 14 Jan 2008
Last Modified: 22 Apr 2010 02:24

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