Essentials of photometry for clinical electrophysiology of vision

Daphne L. McCulloch, Ruth Hamilton

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)77-84
Number of pages8
JournalDocumenta Ophthamologia: the Journal of Clinical Electrophysiology and Vision
Issue number1
Publication statusPublished - 1 May 2010


  • photometry
  • optometry
  • vision sciences


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