Light therapy treatment

A light therapy device comprising:

• light sources configured to generate light in four different wavelengths, each wavelength being selected respectively from ranges 730-770 nm, 850-890 nm, 880-920 nm, and 950-970 nm;
• and
• a processor configured to control operation of at least two of the different wavelengths of the light therapy device to inhibit cytochrome c oxidase when applied to organic tissue during ischemia, at the onset of reperfusion, after reperfusion, or any combination thereof, and apply each of the different wavelengths at a power density that penetrates tissue of a human patient;
• wherein the processor is configured to reduce a brightness of the light generated to inhibit cytochrome c oxidase;
• and wherein the processor reduces the brightness by individually disabling the light sources at different times.

A light therapy system comprising:

• light sources configured to generated light at wavelengths including 730-779 nm, and 950-970 nm, that inhibits cytochrome c oxidase and at a power density that penetrates the tissue of a patient adjacent to an ischemia-reperfusion event, wherein the light therapy system is configured to monitor oxygen;
• and a controller configured to prevent light generated during treatment from interfering with light used to measure oxygen saturation;
• further comprising a processor configured to:
• reduce a brightness of the light emitted following the onset of reperfusion;
• and reduce the brightness by individually disabling the light sources at different times.