Optical Coherence Tomography (OCT) has become an integral part of our clinical practices.  This series of lectures covers the practical uses, interpretation, pitfalls and clinical utility of this imaging modality.  It is stressed that performing the scan alone is inadequate without clinician interpretation and this requires in-depth knowledge of the OCT.  Although it has become an important aspect of the diagnostic pathway, it must be taken in context to the rest of the patient's clinical findings.