Local-Focal Syntonic Optometry is a method applying specific light wavelengths to extrinsic muscle points, as other vision points on the body to bring about an energetic balance to improve visual function.
It has been tested on a variety of vision problems, with Syntonic Optometric testing before and after to determine the immediate response.
Focal - Local Syntonic Penlights:
In-office case
Home unit
We offer a wide array of filter combinations.
developed by Yvonne Frei and Stefan Collier.