With the development of the economy, the social competition is becoming more and more fierce, many children wear glasses at a very young age, when we are matching glasses, how to choose the lenses?
When we choose the lens, we must first look at the light transmission of the glasses, the light transmission performance of the lens is very important, because it directly contacts our eyes, if the light transmission performance of the lens is good, the damage to our eyes is small, if the light transmission performance of the lens is not good, it will affect our vision.
Secondly, depending on the material, there are mainly two kinds of glass lenses and resin lenses. Glass lenses are bulky and easy to break, and now they have been gradually replaced by resin lenses that are lighter and not easy to break.
Glass lenses are less and less in the glasses market, in fact, the light transmission performance of glass lenses is very good, but because of fragile, relatively heavy, especially the myopia degree is very deep people, the lens will be very thick, when a myopia degree is very high after wearing glasses, from the appearance, the surface of the lens a circle, as if wearing a bottle bottom.
We can now buy on the market are mostly resin lenses, resin lenses are relatively lightweight, not easy to break, but its light transmission performance is not as good as glass lenses, and not wear-resistant, when we use resin lenses, we should try to do more washing and less wiping, that is, if our lenses are dirty, try to wash with water, less wipe with rags, because if you use rags to wipe more, The surface of the lens will be abraded, affecting the light transmission performance of the lens.
Now, there are more and more resin lenses on the market, I am also a person who often wears glasses, I personally think that the light transmission performance of resin lenses is not as good as glass lenses, if there are two kinds of lenses let me choose, I will choose good light transmission performance, small damage to the vision of the glass lens, but now on the market has very few glass lens merchants.
Resin lenses are divided into several kinds, there are better light transmission performance, there are medium, almost, we have to choose according to their own needs and economic situation. In addition, there is now a kind of plastic glasses, generally used for myopia deepens relatively fast people, it is to wear glasses at night to sleep, do not wear during the day, it is through keratography to achieve the purpose of myopia treatment, but the price is not expensive, basically no damage to the eyes. It is especially suitable for teenagers with gradually deepening myopia.
In addition, when we first optometry, it is best to go to the hospital to optometry, because the procedure of optometry in the hospital is more formal, and we must go through the procedures of fundus examination, mydilation, and eye distance measurement. It can better ensure the quality of the glasses.
Choose glasses that fit your eyes.