Definition of photopic in English:

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Pronunciation: /fəʊˈtɒpɪk/
Pronunciation: /fəʊˈtəʊpɪk/


Relating to or denoting vision in daylight or other bright light, believed to involve chiefly the cones of the retina. Often contrasted with scotopic.
Example sentences
  • Mean photopic b-wave amplitudes were significantly reduced in cases compared with controls, as were mean oscillatory potential amplitudes and latencies.
  • Figures 1 and 2 show scotopic and photopic amplitude values for all ERG parameters measured for each dog.
  • The photopic curve is for normal vision, and the scotopic curve is for eyes that are adjusted to the dark.


Early 20th century: from photo- 'light' + -opia + -ic.

For editors and proofreaders

Line breaks: pho|top¦ic

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