“倍轻松视力健”是一种专用于眼部电磁按摩的保健治疗仪器,其外形如图1所示。它有四种功效:即防治近视、消除视力疲劳、能提高视力及防治各种电脑眼痛。 当前,由于社会竞争激烈,不论是学生还是 “Times relaxed vision health” is a kind of health care treatment instrument dedicated to the eye electromagnetic massage, its appearance shown in Figure 1. It has four effects: prevention and treatment of myopia, eliminate visual fatigue, can improve vision and prevent all kinds of computer eye pain. At present, due to intense social competition, students are still