 Guardion Health Sciences, Inc. Guardion or the Company GHSI announced today that its Board of Directors has appointed Dr. David Evans, Ph.D. as the Companys Interim President and Interim Chief Executive Officer effective immediately. Dr. Evans has served as the Companys Chief Science Officer and was the founder of the Companys subsidiary, VectorVision. Dr. Evans joined the Guardion Board of Directors effective with the Companys acquisition of VectorVision on September 29, 2017. 