My left and right eyes are astigmatic 150 degrees. I am studying photography and often watching computer. Should I wear astigmatism lenses or progressive lenses?

The main damage of computer and mobile phone screen comes from the long-term light damage of blue light and ultraviolet light on the screen, especially the fundus, so it is suggested to protect the eyes in front of the computer from these two aspects. In addition, the continuous screen jitter of computer screen will also affect the focusing frequency of glasses, and the repeated focusing caused by this jitter will also aggravate the fatigue of eyes.

According to NHK, a survey shows that the blue light emitted by LCD screens such as computers and smart phones may cause eye fatigue, disrupt sleep rhythm and affect health.

Most LCD screens such as computers, smart phones and tablet terminals emit blue light. More and more people use these devices for a long time, and doctors are worried about the possible health impact. A Japanese research institute specializing in this kind of blue light believes that because blue light is the light with the shortest wavelength and very strong energy that the eyes can see, compared with other colors of light, it has a great burden on the eyes, and long-term viewing may induce retinal inflammation. In addition, if you are exposed to blue light at night, it may disturb the sleep rhythm. Other studies have also shown that blue light is one of the potential factors leading to fundus diseases-age-related macular degeneration.

Kazuo Hirata, president of the Blu-ray Research Association and professor of ophthalmology at Keio University School of Medicine, said, "We believe that Blu-ray will not only make the eyes tired, but also affect the rhythm in the human body, so we will conduct in-depth research on the eyes and the body in the future."

An effective way to protect your eyes in front of the computer.

1. Take a regular rest to avoid using your eyes for a long time: every hour, keep your eyes away from the computer and relax to relieve eye fatigue.

2, filter blue light, wear computer protective glasses that can filter blue light, such as Hello computer glasses in Germany: computer blue light is the root cause of eye fatigue and visual cell damage, so it is necessary to filter blue light to eliminate the damage of continuous blue light radiation. Filtering blue light can not only eliminate symptoms such as eye pain when watching a computer, but also relieve eye fatigue. More importantly, it can prevent blue light from damaging visual cells.