Pilot Study of TENS for Ocular Pain

Transcutaneous electrical nerve stimulation (TENS) device with electrode placement at the forehead. A biphasic rectangular wave will be delivered for a maximum of 20 minutes at a maximum amplitude of 16mA. Participant may halt amplitude before it reaches maximum amplitude. The device has previously been cleared by the FDA for use in migraine patients.

Transcutaneous electrical nerve stimulation (TENS) device with electrode placement at the forehead. A 1Hz wave will be delivered for 20 minutes at 1mA.