The Xephilio OCT-A1 Optical Coherence Tomography device, together with the required RX Capture software, computer and LCD monitor (collectively, the "Xephilio OCT-A1 System"), is an optical coherence tomography system indicated for the in-vivo imaging and measurement of the retina, retinal nerve fiber layer, and optic disc. In addition, it is a tool to aid in the diagnosis and management of retinal diseases by a clinician. The Xephilio OCT-A1 System has a scanning speed of 70,000 A-scans per second with optical depth resolution of approximately three microns. With its integrated scanning laser ophthalmoscopic real-time retinal tracking technology, the Xephilio OCT A-1 System automatically retains the scan position and scan protocol for each patient from one exam to the next, eliminating the need for manual adjustment by the operator. A mouse-controlled, three-click operation is used to engage the automated alignment, tracking, and acquisition of high-quality images and scans. To help create a positive, effective user experience, the positioning of the components of the Xephilio OCT-A1 System can allow for the operator and patient to sit side-by-side.