Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Allergan’s handheld TrueTear® intranasal tear neurostimulator device features two prongs covered in disposable hydrogel tips. The tips are inserted into the nasal cavity and provide electrical stimulation to the trigeminal nerve. Adapted from US Food & Drug Administration. De Novo Classification Request for Intranasal Tear Neurostimulator. Available from: https://www.accessdata.fda.gov/cdrh_docs/reviews/DEN160030.pdf.55
