Pupil dilation - PsychonautWiki
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An image example of a dilated pupil

Pupil dilation (also called mydriasis) can be described as the enlargement of the size of a person's pupils under normal lighting conditions. Normally, the pupil size increases in the dark and shrinks in the light, however, a dilated pupil will remain excessively large even in a bright environment.

Pupil dilation is most commonly induced under the influence of moderate dosages of a wide variety of serotonergic compounds, such as psychedelics, dissociatives, deliriants, entactogens, various stimulants[1] and some antidepressants.


Psychoactive substances

Experience reports

See also

External links


  1. Zuba, D. (2012). Identification of cathinones and other active components of ‘legal highs’ by mass spectrometric methods. TrAC Trends in Analytical Chemistry, 32, 15-30. https://doi.org/10.1016/j.trac.2011.09.009