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
Tinnitus retraining therapy loss, a tuned hearing aid that amplifies sound in the frequency range of the hearing loss (usually the high frequencies) may effectively mask tinnitus by raising the level of environmental sound, in addition to the benefit of restoring hearing. White noise generators or environmental music may be used to provide a background noise level that is of sufficient amplitude that it wholly or partially 'masks' the tinnitus (tinnitus masker). Composite hearing aids that combine amplification and white noise generation are also available. Numerous other non-TRT methods have been suggested for the treatment or management of tinnitus. Tinnitus retraining therapy Tinnitus