They are made of two solenoids put in plastic containers and mounted on glasses for medical use; the field is emitted on the two containers’ total surface. You select the emission with a control box that lets you to distribute the field over both eyes at the same time, or just one.
This innovative emitter is particularly helpful in treating some ophthalmological diseases, both post-surgery and regenerative.
The density of the EMF distributed in the treatment area is under the occupational protection limits.