Vogt–Koyanagi–Harada disease Vogt–Koyanagi–Harada disease Vogt–Koyanagi–Harada disease (VKH), also known as Vogt–Koyanagi–Harada syndrome, uveomeningitis syndrome and uveomeningoencephalitic syndrome, is a multisystem disease of presumed autoimmune cause, that affects pigmented tissues, which have melanin. The most significant manifestation is bilateral, diffuse uveitis, which affects the eye. VKH may variably also involve the inner ear with effects on hearing, the skin, and the meninges of the central nervous system. The disease is characterised by bilateral diffuse uveitis, with pain, redness and blurring of vision. The eye symptoms may be accompanied by a varying constellation of systemic symptoms, such as auditory (tinnitus, vertigo, and hypoacusis), neurological
Don Ritter (artist) of interactive art should be an aesthetically pleasing experience not only for the mind but also for the body". His software "Orpheus" (1987), which enabled an improvising musician to control the narrative projection of video, is an early example of an interactive video installation. In his 1993 interactive installation "Intersection", viewers cross a virtual highway in a large darkroom . The highway is represented by the computer-controlled sound of cars passing and coming to a screeching halt. Ritter has collaborated with the American trombonist George Lewis. Don Ritter (artist) Don Ritter (1959) is a Canadian artist known for his interactive