Eye anatomy and muscles. Coloured coronal magnetic resonance imaging (MRI) scan passing vertically through the head of a 33-year-old man, seen from the front, with the scan passing through the eyes. This scan shows some of the normal structures of the eyes and their support tissues, including the oblique muscles and the fat in the orbits of the eyes. Parts of the brain and nasal sinuses are also visible on this scan. This is a T1-weighted scan, with injection of gadolinium contrast medium.