Abstract
We developed a Defect Volume (DV) program with the Scoperimeter to accurately compute both fluctuation and defect volume, with the ultimate purpose to statistically evaluate progression of visual field defects. After testing glaucoma patients we were able to show that unbiased threshold selection for determining individual sensitivity is very important in computing a defect volume, that individual gradient adaptation does not seem necessary, and that use of individual versus mean fluctuation remains controversial. Normal areas in glaucomatous visual fields may not be the same as fully healthy visual fields.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bebié, H. and Fankhauser, F. Delta manual. Published by Interzeag. Schlieren, Switzerland (1981).
Bebié, H., Fankhauser, F. and Spahr, J. Static perimetry: accuracy and fluctuations. Acta Ophthalmologica; 54: 339– 348 (1976).
van den Berg, TJTP., van Veenendaal, W. and van Spronsen, R. Psychophysics of intensity discrimination in relation to defect volume examination on the Scoperi- meter. Docum Ophthal Proc Series This volume (1984).
Langerhorst, C.T., van den Berg, T.J.T.P., van Yeenendaal, W. and Greve, E.L. Schatting van de verschillende fluctuatiefactoren bij glaucoompatiënten. Ned. Tijdschr. v. Geneesk. 127 (53): 2443 (1983).
Langerhorst, C.T., van den Berg, T.J.T.P. and Greve, E.L. Schätzung der verschiedene Fluktuationsfaktoren bei der Computerperimetrie von Glaukompatienten. To be published in Bucherei der Augenarztes der Enkes-Verlag (1984).
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1985 Dr. W. Junk Publishers, Dordrecht, The Netherlands
About this chapter
Cite this chapter
Langerhorst, C.T., Van Den Berg, T.J.T.P., Van Spronsen, R., Greve, E.L. (1985). Results of a Fluctuation Analysis and Defect Volume Program for Automated Static Threshold Perimetry with the Scoperimeter. In: Heijl, A., Greve, E.L. (eds) Sixth International Visual Field Symposium. Documenta Ophthalmologica Proceedings Series, vol 42. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5512-7_1
Download citation
DOI: https://doi.org/10.1007/978-94-009-5512-7_1
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8932-6
Online ISBN: 978-94-009-5512-7
eBook Packages: Springer Book Archive