Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome: ARISE-3

Inclusion Criteria: * Be at least 18 years of age; * Provide written informed consent; * Have a subject reported history of dry eye for at least 6 months; * Have a history of use or desire to use eye drops for dry eye symptoms within 6 months Exclusion Criteria: * Have any clinically significant slit-lamp findings at Visit 1 that may include active blepharitis, meibomian gland dysfunction (MGD), lid margin inflammation or active ocular allergies that require therapeutic treatment, and/or in the opinion of the investigator may interfere with study parameters; * Be diagnosed with an ongoing ocular infection (bacterial, viral, or fungal), or active ocular inflammation at Visit 1; * Have an uncontrolled systemic disease; * Be a woman who is pregnant, nursing or planning a pregnancy