Paul Devereux wrote an interesting article for Fortean Times about macular degeneration, a common cause of vision loss for elderly people. Why is an eye disease interesting to forteans who study unusual phenomenon? Some sufferers experience amazingly strange hallucinations as the brain "fills in" what the eyes are missing.
"The research reveals that the hallucinations can last from a few seconds to several hours and can be of many things, both familiar and unfamiliar to the person viewing them. Hallucinatory content can include inanimate objects, people, animals, plants and bunches of flowers, trees, and complete scenes. Some people see strange things such as monsters, shining angels, or transparent figures floating in a ghostly manner through rooms and hallways."
