 BALTIMORE, Sept. 30, 2021 GLOBE NEWSWIRE -- Graybug Vision, Inc. Nasdaq: GRAY, a clinical-stage biopharmaceutical company focused on developing transformative medicines for the treatment of diseases of the retina and optic nerve, today announced that Fred Guerard, PharmD, Chief Executive Officer of Graybug Vision, will participate in the following events at the Ophthalmology Innovation Summit OIS Retina on Thursday, October 7, 2021, in San Antonio, Texas. The OIS Retina conference is being held in conjunction with the American Society of Retina Specialists ASRS 39th Annual Scientific Meeting. Dr. Guerard will be a speaker at the following events: 