In his 1978 essay, “How to Build a Universe That Doesn’t Fall Apart Two Days Later“, Philip K. Dick wrote, “Reality is that which, when you stop believing in it, doesn’t go away.” This ontology is challenged by a syndrome recently brought to my attention in a recent post on boingboing.net, “Hallucinations brought on by eye disease,” wherein David Pescovitz writes,
In recent days, both the Daily Mail and Wired.com looked at Charles Bonnet Syndrome [CBS], a disease characterized by bizarre and vivid visual hallucinations. Interestingly, people who suffer from CBS aren’t mentally ill but have visual impairments such as macular degeneration. Even weirder is that the hallucinations often involve characters or things that are much smaller in size than reality.
Read the whole post and follow the link to this article at the Daily Mail on Charles Bonnet Syndrome, and this interview at Wired with neurologist [...]