Guardion Health Sciences, Inc. (GHSI), along with its various affiliates, functions as a specialized healthcare enterprise operating within the United States. The company's operations are divided into two primary segments: Medical Foods and Nutraceuticals, and Medical Devices. Under its Medical Foods division, Guardion Health Sciences offers Lumega-Z, a therapeutic food designed to replenish and restore the eye's macular protective pigment. It also provides GlaucoCetin, a specialized medical food formulated to support and safeguard the mitochondrial function of optic nerve cells, and to improve ophthalmic artery blood flow in patients afflicted with glaucoma. In the Medical Devices sector, the company supplies MapcatSF, a device used to precisely measure macular pigment optical density. It also markets the CSV-1000, which conducts self-calibrated tests to ensure accurate luminance and contrast levels, and the CSV-2000, a digital system for standardized contrast sensitivity testing. Moreover, Guardion Health Sciences develops, manufactures, and distributes equipment and accessories for standardized vision screening under the VectorVision name, utilized by vision care professionals in clinical research, real-world diagnostic evaluations, and occupational vision assessments. Furthermore, the company is actively developing ImmuneSF, a new nutraceutical blend, and manages a comprehensive collection of nutritional supplement products marketed under its NutriGuard brand. Its medical food items are distributed directly to consumers via its online store, guardionhealth.com. Guardion Health Sciences, Inc. was established in 2009 and is headquartered in San Diego, California.