OCT is a relatively new imaging technology that acquires high resolution images of the internal structures of the eye.
OCT uses light to image ocular tissue in a cross-sectional view. It has a resolution of 2-3 microns; 100 times finer than traditional ocular imaging techniques such as ultrasound, MRI, and CT.
The images acquired are a useful tool for assessing ocular diseases of the macula, optic nerve, and anterior structures of the eye, and for monitoring response to treatment.
The OCT scan is a brief, non-invasive imaging test. It typically takes less than 5 minutes to obtain the scans, and there are no associated risks.