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 eliminate tinnitus. The efficacy of TRT in reducing the distress of tinnitus has not been established. TRT is not a medical treatment for tinnitus or any other condition, and is not administered by a medical doctor or other medical professional. An alternative to TRT is tinnitus masking, the use of noise, music or other environmental sounds to obscure or mask the tinnitus. Hearing aids can provide a partial masking effect for the condition. Results from a review of tinnitus retraining therapy trials indicate that it may be a more effective treatment than tinnitus masking. Not everyone who experiences tinnitus is