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Documenta Ophthalmologica

01-08-2010 | TECHNICAL NOTE

Essentials of photometry for clinical electrophysiology of vision

Authors: Daphne L. McCulloch, Ruth Hamilton

Published in: Documenta Ophthalmologica | Issue 1/2010

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Abstract

Electrophysiological testing of the visual system requires familiarity with photometry. This technical note outlines the concepts of photometry with a focus on information relevant to clinical ERG and VEP testing. Topics include photometric quantities, consideration of pupil size, specification of brief extended flash stimuli, and the influence of the spectral composition of visual stimuli. Standard units and terms are explained in the context of the ISCEV standards and guidelines for clinical electrophysiology of vision.
Footnotes
1
The full quote in context: “Boswell. ‘Then, Sir, what is poetry?’ Johnson. ‘Why, Sir, it is much easier to say what it is not. We all know what light is; but it is not easy to tell what it is.’” 12 April 1776, James Boswell, Life of Johnson (1791).
 
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Metadata
Title
Essentials of photometry for clinical electrophysiology of vision
Authors
Daphne L. McCulloch
Ruth Hamilton
Publication date
01-08-2010
Publisher
Springer-Verlag
Published in
Documenta Ophthalmologica / Issue 1/2010
Print ISSN: 0012-4486
Electronic ISSN: 1573-2622
DOI
https://doi.org/10.1007/s10633-010-9233-2