Imaging studies show the orbit and its contents with high detail. When facing a patient with ocular trauma, infection or neoplasm it is fundamental to be acquianted with the anatomy of the orbit in order to make a proper interpretation of the images and a correct localization of the lesions. The purpose of this article is to briefly review the anatomy of the orbital structures: bony orbit, globe, extraocular muscles and the intraconal, conal and extraconal spaces in computed tomography and magnetic resonance images to facilitate clinical understanding and caracterization of the lesions.