For example, the picture on the left shows our Nidek Optical Coherence Tomography (OCT) imaging system which provides accurate analysis of the health of your eyes via advanced imaging scans. Our Nidek OCT is a painless and non-invasive procedure that scans the structure of your eye creating a comprehensive 3D image of the microscopic layers of your retina. It can diagnose and monitor your macular to detect early signs of macular degeneration, glaucoma and other retinal conditions. Because in most cases the OCT can detect structural damage before patients notice any problems, with early treatment it could save the patient's ability to see.