There's more to healthy vision than 20/20 eyesight!


Syntonics (also known as optometric phototherapy) is the branch of ocular science that deals with the gentle and safe application of selected visible-light frequencies through the eyes to treat inefficient visual function. Properly guided and supervised, syntonics is an effective method of treatment to resolve many conditions associated with the eyes. Ocular phototherapy has become one of the fastest growing areas in clinical research and health care.

For the past seven decades, it has been used clinically in the field of optometry for successfully treating a variety of eye conditions such as:

  • strabismus (eye turns)
  • amblyopia (lazy eye)
  • focusing problems
  • ocular discomfort and headaches
  • light sensitivity
  • visual field constriction
  • learning disorders
  • stress or emotional related visual disorders
  • certain visual problems related to traumatic brain injury.

Light entering the eyes not only serves vision, but also travels to other important brain regions. It is believed that applying certain frequencies of light by way of the eyes can restore balance within the body's regulatory centers, thereby directly affecting the source of visual dysfunctions. This balance is referred to as syntony.

The goal of syntonics is to improve vision problems by balancing the sympathetic and parasympathetic nervous system. The yellow, orange and red ends of the visible spectrum stimulate the sympathetic nervous system; and the blue, indigo and violet ends stimulate the parasympathetic nervous system. Green is the balance frequency stimulating the sympathetic and parasympathetic nervous systems equally.

Interest in phototherapy has increased in recent years, with research showing that color changes the interaction and timing in the visual-processing system, and also with the discovery of a condition known as seasonal affective disorder, a psychological depression occurring during the winter months, which responds to phototherapy.