Employees can work continuously at most 3 hours and must stay at least 20 minutes in sight. By letting your eyes 10 seconds. Before lifting off the page, and then gently open your eyes to eyes.
Employees can work continuously for a maximum of three hours, and I need to stay at least 20 minutes with the eyes closed for 10 seconds before lifting off, then slowly open your eyes. To adjust
Employees can work smoothly and continuously the most 3 hours and must stay at least 20 minutes.By the close 10 seconds before the head out of the machine, then slowly open your eyes to ปรับสายตา.