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There are a couple of things to keep in mind here: 1. The link between psychedelic use and persisting minor visual disturbances is reasonably well established.
by darawk 4y ago
There are a couple of things to keep in mind here:
1. The link between psychedelic use and persisting minor visual disturbances is reasonably well established.
2. The link between psychedelic use and serious, problematic visual disturbances or psychiatric issues is not well established at all, and modern evidence calls into question[1].
Even if we do take at face value the attributions of problematic HPPD to psychedelics (which we really shouldn't), the prevalence of this phenomenon is extremely low. So low that there isn't much in the way of empirical data to estimate its prevalence - just case reports. And case reports are a notoriously unreliable way to reason about etiology.
[1] https://www.nature.com/articles/nature.2015.16968 https://www.nature.com/articles/nature.2015.16968
- tsol 4y ago>2. The link between psychedelic use and serious, problematic visual disturbances or psychiatric issues is not well established at all, and modern evidence calls into question[1]. You are misinterpreting this. This is saying there's no link between psychedelic use and increased cases of psychosis. That isn't the same as debilitating HPPD, or any depression/anxiety caused as a result. In fact in that same article he highlights this; >But he has concerns about Krebs and Johansen’s overall conclusions, he says, because individual cases of adverse effects use can and do occur. >For example, people may develop hallucinogen persisting perception disorder (HPPD), a ‘trip’ that never seems to end, involving incessant distortions in the visual field, shimmering lights and coloured dots. “I’ve seen a number of people with these symptoms following a psychedelic experience, and it can be a very serious condition,” says Grob.