随着互联网的飞速发展,电脑族的人数在不断扩大。长期使用电脑的人如果不注意休息,缺少弹性活动,眼睛极容易疲劳,最终还可能导致视力下降,出现眼睛不适的状况。对于长期用电脑或看书的人群,建议多摄取紫色蔬菜来预防眼部疾病、缓解眼部疲劳。在视网膜里有一种色素叫视网膜紫质,它的作用是感知光并传送视觉信号给大脑。而视网膜紫质水平的下 With the rapid development of the Internet, the number of computer users is constantly expanding. Long-term use of the computer if people do not pay attention to rest, the lack of flexibility in activities, the eyes very easy to fatigue, and ultimately may result in decreased vision, eye discomfort. For long-term use of computers or reading the crowd, it is recommended to take more purple vegetables to prevent eye diseases, relieve eye fatigue. In the retina there is a pigment called retinal rhodopsin, its role is to sense the light and send visual signals to the brain. While retinal levels are lower