Are the lights medically approved? Is a prescription needed?
In the sense that your doctor suggests and supervises the treatment, the method is approved. People don’t need a prescription for light, but anyone suffering serious depression should certainly seek a doctor’s recommendation before obtaining a unit, and use it under the doctor’s supervision. Choose your doctor wisely, and question one who simply prescribes drugs such as melatonin or anti-depressants. Some doctors do not have knowledge of Full Spectrum nor Light Therapy.