Improved colour blindness symptoms associated with recreational psychedelic use: Results from the Global Drug Survey 2017
Drug Science Policy and Law January 1, 2020 Jec Anthony, Adam Winstock, Ja Ferris et al. 9 citations
People with color blindness have reported improvements after using psychedelic drugs like LSD and psilocybin. In the Global Drugs Survey 2017, 47 respondents provided useful descriptions, and 23 reported improved color blindness. Some said the effect lasted from days to years. The improvement may result from new visual experiences (photisms) during the psychedelic state linking with existing color concepts, possibly due to enhanced connections between visual and language brain areas. This preliminary data suggests further investigation is warranted.