Gray computer glasses and yellow glasses which is good

In general, the computer glasses are colorless and transparent, but there is a discoloration of the lens, the color can be turned from colorless to other colors, such as gray and yellow, which two kinds of discoloration glasses which is better?
Whether it is gray eyeglass or yellow glasses have their own advantages, the general myopic lens color lens using gray computer glasses more.

Gray film: gray lenses for any chromatogram can be balanced absorption, so watch the scenery will only darken, but there will be no obvious color, showing a true natural feeling. Belong to neutral color.
Gray lens: similar to the gray lens, belong to the neutral lens, but the color is deeper, visible light absorption rate higher.
Yellow lenses: Strictly speaking, such lenses do not belong to sunglasses because they hardly reduce visible light, but in foggy and dusk moments, yellow lenses can improve contrast and provide more accurate video, so called night vision computer goggles The Some young people wear yellow lenses "sunglasses" as decorative use.
In addition, the glasses of the glasses are also gray and yellow.
Gray: can effectively reduce the light intensity, so that the scenery looks soft and not dazzling, to provide better visual effects, suitable for reflective strong sunshine environment, is the most comfortable for a variety of sports lenses.
Yellow: can enhance the contrast, so that the natural scenery more bright and clear, suitable for dusk, night, or early morning, fog, rain and other environments.
Glasses

Lens small knowledge development
Is it possible to change the color of the computer glasses lens?
As we all know, the color of the lens has a UV function, but after all, the UV is invisible, so the anti-ultraviolet effect of the discoloration of the lens is not so easy to see out, so I believe now wearing the lens of myopic eyes are stained lenses anti- The function of the doubt. So what is the color lens in the end?
What cleaning computer glasses for computer use
The lens is easy because of the cleaning method or the use of clean items is not right, and the lens turns yellow, scratched the situation, seriously affect the wearing effect, and long-term wear will have an impact on vision. So master the correct method of lens cleaning, and know what glasses cleaning, for our vision and the life of the computer screen glasses lens are very helpful.

Now with computer glasses a lot of people, but most people have such doubts: frames are relatively good selection, style like to try to wear comfort on it, and the lens is picked up is confused, facing hundreds of varieties of lenses I do not know how to choose, buy expensive bar afraid of being slaughtered; buy cheap and afraid of the eyes hurt, eyes are not joking. Choose glasses when the time should vary, according to their own circumstances.