Optical Coherence Tomography is a non-invasive technique use a broadband light source to illuminate the area of study with light in the near infrared spectrum, then obtains static images of tissue structure from interference signals of the back-reflected light.
Optical Coherence Tomography a non-contact, non-invasive means of documenting both tissue structure and blood flow changes in ocular disease and can provide high resolution cross-sectional images of tissue structure, direct visualization of blood flow in blood vessels of the eye.