Six Month Study to Evaluate the Safety and Effectiveness of the Intranasal Lacrimal Neurostimulator

Inclusion Criteria: * Subjects with moderate to severe dry eye disease * Literate, able to speak English or Spanish, and able to complete questionnaires independently * Willing to sign the informed consent and deemed capable of complying with the requirements of the study protocol Exclusion Criteria: * Chronic or recurrent epistaxis, coagulation disorders or other conditions that, in the opinion of the investigator, may lead to clinically significant increased bleeding * Nasal or sinus surgery (including history of application of nasal cautery) or significant trauma * Cardiac demand pacemaker, implanted defibrillator or other implanted electronic device * Diagnosis of epilepsy * Corneal transplant in either or both eyes * Participation in any clinical trial with a new active substance or a new device within 30 days of the Screening Visit * Women who are pregnant, planning a pregnancy, or nursing at the Screening Visit