Ophthalmic Imaging Systems engages in the design, development, manufacture, and marketing of digital imaging systems, image enhancement and analysis software, and informatics solutions for use by practitioners in the ocular health field. The company offers WinStation systems and products that are primarily used by retina specialists and general ophthalmologists to capture color images of the retina and to perform a diagnostic test procedure, known as fluorescein angiography, as well as to perform indocyanine green angiography. It also provides Digital Slit Lamp Imager and WinStation for Slit Lamps, which are used by eye care practitioners, including ophthalmologists and optometrists primarily for imaging the front of the eye; OIS EyeScan, a portable imaging device that enables practices to capture images of the anterior and posterior segment of the eye; OIS Symphony Image Management System, which automatically imports images and diagnostic reports from the diagnostic devices within the practice into a single system; OIS Symphony System that captures patient images and diagnostic reports from different devices to be viewed side-by-side on one screen with reviewing tools; and OIS EMR/PM solution, which enables users to move back and forth between various applications. In addition, the company offers Abraxas EMR that is used for writing electronic prescriptions or electronically enter orders for radiology, lab work, and other procedures; Abraxas PM for identification of problem accounts; and Abraxas Scheduling, a software that allows users to view on-screen the schedules of one or multiple physicians at any time, reserve time frames for specific appointment reasons, color code them for on-screen identification, and keep track of patients scheduling history. It markets its products through distributors and direct sales force in the United States and internationally. The company was founded in 1984 and is headquartered in Sacramento, California.