Eye MD here. Created an account just to reply to this since...
User jaedr, in the WTF?! subreddit,
Eye MD here. Created an account just to reply to this since it's possibly dangerous. Sudden and single dilation of one pupil is…
Pupil diameter in migraine and tension headache.
Overview of attention for article published in Journal of neurology, neurosurgery and psychiatry, February 1987