<unk>  or phototherapy consists of exposure to specific wavelengths of<unk>  using lasers, LEDs, fluorescent lamps, dichroic lamps or very bright, full-spectrum<unk> , for a prescribed amount of time. It has proven effective in treating Acne vulgaris, seasonal affective disorder, and for some people it has ameliorated delayed sleep phase syndrome. It has recently been shown effective in non-seasonal depression. Proponents claim demonstrable benefits for skin conditions such as psoriasis and, more controversially, a degree of "skin rejuvenation."
Light therapy
NeuroElectric Therapy
Ocular prosthesis
Voice therapy 
Transcranial magnetic stimulation
Hyperopia surgery
Behaviour therapy
Cataract surgery