Current diagnostic and therapeutic decisions based on the outcomes of imaging technologies have become a common practice in every ophthalmic subspecialty. New devices and tools for evaluating the retina and optic nerve head, such as scanning laser polarimetry and spectral-domain optical coherence tomography (OCT), are widely used in clinical practice. These technologies provide objective quantitative measurements and in vivo real-time images of ocular struc- tures. The performance of imaging devices is continuously being improved, and thus knowledge of their applica- tions, advantages, and limitations must also be continuously updated to optimize their management by clinicians.