Views: 203 Author: Site Editor Publish Time: 2020-11-07 Origin: Site
With the development of science and technology, there are many different kinds of attention to eyewear. Especially the improvement of the technical level of lenses has indeed made wearing glasses a lot more comfortable. Progressive multifocal glasses are very popular in recent years. Although the price is high and the glasses are troublesome, they are still popular because of their high wearing comfort and the ability to protect eyesight. But what exactly is this kind of lens?
This type of lens is not very different from ordinary lenses such as anti uv and blue light glasses, and there is no obvious dividing line. However, the lenses we wear daily with glasses have and only have one degree, but progressive lenses can have several different degrees, and there are different focal points on one lens. And the same progressive multifocal lens has different divisions, such as single focus, bifocal, and multifocal lenses. But now more of them are multifocal lenses, which are more practical. For many young people who have mild myopia due to long-term use of computers, tablets and mobile phones, anti blue light glasses for kids can actually relieve them effectively, but the effect of multifocal computer glasses will be better.
It is recommended that everyone choose this kind of lens, because it really solves the adjustment of the eyeball in the distance and near vision. Especially for children who often do homework and have to look at the blackboard, such lenses can still protect their eyesight and reduce the fatigue of the eyes. For those who are engaged in occupations in front of computers or writing, too much radiation from computers and fatigue caused by excessive eye use, general prescription lenses with blue light filter are actually sufficient. However, in order to better protect the eyes, it can be upgraded on the basis of anti-blue lens. The blue gradient lens sunglasses fits this demand very well.
Progressive multifocal lenses are generally divided into four areas, which should be tested when matching glasses. Generally, there is an area where you can see far and near, and there is an area that changes regularly from top to bottom, and you can directly see objects at a moderate distance. The two sides belong to the area of power change, because when the line of sight passes through this area, it will feel blurred, but this is also a process that allows us to gradually adapt to this type of lens, and we can use our eyes appropriately.
Compared with the previous anti blue ray lens or uv and blue light protection glasses, almost all myopia patients, especially teenagers and children, now tend to wear such lenses. And now the glasses net can also make it more convenient for us to match glasses, but because of the troublesome progressive multifocal lens optics, and the accuracy of the optics must be ensured, and there must be an adaptation process. Therefore, you must do a good job of testing first, only in this way can you ensure a good glasses effect, and the wearing comfort star can also be improved.
The lens of progressive multifocal glasses looks like a single vision lens, and the dividing line of power change is not seen. Not only is the appearance beautiful, but more importantly, it protects the age privacy of the wearer, and there is no need to worry about leaking the age secret due to wearing glasses. Therefore, some older people can also use progressive multifocal reading glasses.
Since the change of the lens power of progressive multifocal glasses is gradual, there will be no image jump. It is comfortable to wear and easy to adapt. So it is easy to be accepted.
Because the degree is gradual, the replacement of the adjustment effect is gradually increased according to the shortening of the short distance. There is no adjustment fluctuation, and it is not easy to cause visual fatigue.
Progressive multifocal glasses can obtain clear vision at all distances in the visual range. A pair of glasses meets the use of distance, near and intermediate distances at the same time, which is not possible with lenses other than progressive lenses.
