 Guardion Health Sciences, Inc. Guardion or the Company GHSI announced that it has completed development of its proprietary CSV-2000 standardized contrast sensitivity test and will introduce the commercial product at Vision Expo West, a conference for ophthalmic professionals, in Las Vegas, Nevada, from September 18 to 21, 2019. The CSV-2000 is the only computer-generated vision testing instrument available that will provide the optical marketplace with the Companys proprietary, industry-standard contrast sensitivity test, along with a full suite of standard vision testing protocols. The proprietary standardization methodology incorporated into the CSV-2000 includes a patented technology known as AcQviz that automatically and constantly measures and adjusts screen luminance to a fixed standard light level for vision testing. 