Meet TrueTear : a smart tear neurostimulator that causes your eyes to naturally produce tear with tiny pulses. This prescription device has only two buttons, so you can easily change its strength with a couple of clicks. TrueTear comes with disposable tips. You can connect it to your iPhone to track usage and check battery level.
To get the most out of this device, you will need to make the right contact to the nerves under the bridge of the nose. The above video shows how this tear neurostimulator works.[where to get it]