With the development of electronic products and the increase of daily ambulatory work, visual fatigue is a relatively common symptom in today’s society. In addition to the dry eyes and foreign body sensation, visual fatigue can also cause many other symptoms including eye and body symptoms. For example, burning sensation in the eyes, pain in the eyes including stinging or swelling of the eyes, and itchy eyes. It also includes frequent blinking or squeezing of the eyes. It may also cause loss of vision or poor durability when using the eyes at close range, which is likely to cause blurred vision after a period of time, or failure to adapt quickly to seeing things at a distance immediately after using the eyes at close range. In addition, the relatively serious symptoms of visual fatigue may also cause some other symptoms of general discomfort, such as dizziness, headache, and even nausea, neck and shoulder pain, which may also be due to visual fatigue and discomfort symptoms.