Skip to main content

Quantifying the Magnitude of Visual Impairment with Multi-Flash Campimetry

  • Conference paper
Low Vision

Abstract

Multi-flash campimetry is a computer implemented clinical psychophysical technique that uses the ability to detect flicker to distinguish between healthy observers and ophthalmological patients [1–3]. On each trial, a computer randomly selects a point from a 36 point display and begins to flicker it at 5 Hz. The duty cycle of this flickering point (the proportion of the flicker period that is lit), is decreased from 100% in 1.4% steps each cycle until the observer makes a manual response indicating that flicker has been detected.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 129.00
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 169.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. E.M. Brussell, C.W. White, M. Bross, P. Mustillo, M. Borenstein: Multi-flash campimetry in multiple sclerosis. Curr. Eye Res. 1, 671 (1981/2)

    Article  PubMed  Google Scholar 

  2. O. Overbury, E.M. Brussell, C.W. White, W. Jackson, D. Anderson: Evaluating visual loss with multi-flash campimetry. Can. J. Ophthalmol. 19, 255 (1984)

    PubMed  CAS  Google Scholar 

  3. E.M. Brussell, C.W. White, J. Faubert, M. Dixon, G.A. Balazsi, O. Overbury: Multi-flash campimetry as an indicator of visual field loss in glaucoma. Am. J. Optom. Physiol. Opt. 63, 32 (1986)

    PubMed  CAS  Google Scholar 

  4. R.T. Ross: The fusion frequency in different areas of the visual field: IV. Fusion frequency as a function of the light-dark ratio. J. Gen. Psychol. 29, 129 (1943)

    Google Scholar 

  5. H.E. Ives: Critical frequency relations in scotopic vision. J. Opt. Soc. Am. 6, 254 (1922)

    Article  Google Scholar 

  6. J. Flammer, S.M. Drance, L. Augustiny, A. Funkhouser: Quantification of glaucomatous visual field defects with automated perimetry. Invest. Ophthalmol. Vis. Sci. 26, 176 (1985).

    PubMed  CAS  Google Scholar 

Download references

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 1987 Springer-Verlag New York Inc.

About this paper

Cite this paper

Dixon, M., Brussell, E.M. (1987). Quantifying the Magnitude of Visual Impairment with Multi-Flash Campimetry. In: Woo, G.C. (eds) Low Vision. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-4780-7_6

Download citation

  • DOI: https://doi.org/10.1007/978-1-4612-4780-7_6

  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4612-9152-7

  • Online ISBN: 978-1-4612-4780-7

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics