Facebook/Oculus recently published a patent titled "Direct Electrical Stimulation Delivery System for the Treatment of Visual Disease." This patent describes a system and method for treating visual diseases using electrical stimulation. The system involves delivering microcurrents to the skin around the eye area, generating low-voltage pulse currents with specific waveforms and defined frequency ranges to treat age-related macular degeneration and other visual diseases. The traditional devices for electrical stimulation therapy have several problems, such as the need for a doctor to maintain contact with the skin using a probe for a long time, and the inconsistency in probe placement. In response to these issues, Oculus utilized its expertise in head-mounted displays and developed a system that overcomes these problems by delivering microcurrent stimulation to the eye area. The system includes a signal generator and a head-mounted applicator with magnetic slots for electrodes that make contact with the skin surface of the left and right eye areas. This patented system ensures correct and stable placement and is suitable for long-term wear. The patent was initially submitted in May 2018 and was recently published by the United States Patent and Trademark Office.