Light Therapy consists of exposure to daylight or specific wavelengths of light using Polychromatic Polarized Light, Lasers, Light-Emitting Diodes, Fluorescent Lamps, Diachronic Lamps, or Very Bright Full-Spectrum Light. Children with Sensory Processing Disorder (SPD) get a positive response from this therapy as it helps to improve Visual Development, Colour Recognition, Visual Perception, Spatial Awareness, and Communication Skills.

Light Therapy which strikes the retina of the eyes is used to treat Circadian Rhythm Disorders such as Delayed Sleep Phase Disorder and can also be used to treat Seasonal Affective Disorder (SAD) and with some support Non-Seasonal Psychiatric Disorders. Jet Lag, Sleep Disorders, adjusting to a night-time work schedule, Dementia is responsive to this therapy.

Light Therapy is also used to treat skin conditions such as Psoriasis, Acne Vulgaris, Eczema, and Neonatal Jaundice.