She was tripping hard.
Opiates give pinpoint pupils. What gives dilated pupils, a side from LSD? atropine eye drops. Barbiturates? Not sure. Can some medical Freeper help out?
I remember driving home one morning from a house party when I was 16. Caught a glimpse of my eyes in the visor mirror and noticed pupils were huge. (worried about my folks being up) For what it’s worth I believe coke was the prominent substance used that night. Though, doesn’t pot do the same thing?