What does Electroretinography mean?
Definitions for Electroretinography
-ˈɒg rə fielec·troretinog·ra·phy
This dictionary definitions page includes all the possible meanings, example usage and translations of the word Electroretinography.
Wiktionary
electroretinographynoun
a diagnostic test to used to measure the electrical responses of various cell types in the retina
Wikidata
Electroretinography
Electroretinography measures the electrical responses of various cell types in the retina, including the photoreceptors, inner retinal cells, and the ganglion cells. Electrodes are usually placed on the cornea and the skin near the eye, although it is possible to record the ERG from skin electrodes. During a recording, the patient's eyes are exposed to standardized stimuli and the resulting signal is displayed showing the time course of the signal's amplitude. Signals are very small, and typically are measured in microvolts or nanovolts. The ERG is composed of electrical potentials contributed by different cell types within the retina, and the stimulus conditions can elicit stronger response from certain components. If a flash ERG is performed on a dark-adapted eye, the response is primarily from the rod system. Flash ERGs performed on a light adapted eye will reflect the activity of the cone system. Sufficiently bright flashes will elicit ERGs containing an a-wave followed by a b-wave. The leading edge of the a-wave is produced by the photoreceptors, while the remainder of the wave is produced by a mixture of cells including photoreceptors, bipolar, amacrine, and Muller cells or Muller glia. The pattern ERG, evoked by an alternating checkerboard stimulus, primarily reflects activity of retinal ganglion cells.
U.S. National Library of Medicine
Electroretinography
Recording of electric potentials in the retina after stimulation by light.
Numerology
Chaldean Numerology
The numerical value of Electroretinography in Chaldean Numerology is: 1
Pythagorean Numerology
The numerical value of Electroretinography in Pythagorean Numerology is: 9
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"Electroretinography." Definitions.net. STANDS4 LLC, 2024. Web. 16 Apr. 2024. <https://www.definitions.net/definition/Electroretinography>.
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