The conclusion is based on incomplete science. Also, it's relevant to note that schizophrenia is often not diagnosed if there aren't hallucinations and a born blind person would be unlikely to have visual ones at least, even with other symptoms. Not saying that it is required for diagnosis, just that many providers would be less likely to diagnose schizophrenia rather than other similar diagnoses without that symptom. Auditory hallucinations are actually the most common, but those without visual hallucinations can be attributed to quite a few other conditions, some of which are physical rather than mental.

Anyway, the studies are very limited and incomplete and there are other things that could explain the correlation rather than it being causal.

[–] HubertManne@piefed.social 2 points 1 day ago

yeah I came in very skeptical. Another thing is that yound schizophrenics can do some goofy things that are much harder to do if one is blind. Like just go off someplace and live on the streets.