Despite our many technological advancements, the human brain is still a big mystery, as proven by the recently published case of a German woman who, although legally blind, has her sight miraculously restored at times. The 37-year-old suffers from dissociative identity disorder (DID), and apparently has perfect vision when she switches to eight out of her ten personalities.
The woman, only referred to by her initials B.T., first went to see German psychotherapist Dr. Bruno Waldvogel about 14 years ago. She was completely blind at the time and accompanied by a guide dog. She told the doctor that her vision had become severely impaired during an accident at age 20, after which she gradually became blind. Waldvogel checked her medical records, which clearly stated that she had been diagnosed with cortical blindness from trauma to the skull and brain. Her eyes showed no sign of physical damage.
Waldvogel eventually diagnosed B.T. with DID, previously known as Multiple Personality Disorder, which manifested itself through no less than 10 personalities of different names, voices, and genders. Some of her personalities spoke only in German, others used English. But a major breakthrough came after about four years of treatment, when Waldvogel was shocked to witness B.T. recognize a few words on the cover of a magazine. She had assumed the personality of a teenage boy at the time.