Do You Notice These Problems?
With the improvement of life, and the necessity of beautifying and convenience, contact lens has already become a kind of essential product in daily life. However, facing more and more negative news about contact lens, are you at a loss when dying to choose a proper one from various kinds of lens? Sometimes, if we take notice of scientific ways of selecting and using contact lens, those confusing problems can be definitely avoided. So contact-lens-attached guys, let’s now take a look at the problems below altogether! Have you ever paid attention to these problems?
There are free of blood vessels in the cornea, so the cornea needs to drink in fresh oxygen in the air so as to maintain physiological function of the cells. Therefore, in judging whether a pair of contact lens is good or not depends on whether the lens have a good performance of passing through oxygen, which is also a technological problem that puzzles the manufacturers of contact lens for all these years.
The common contact lens in the market today are made of water gelatin, in which water works as the media of passing oxygen to the cornea. However, when you wear contact lens for a long time, the water contained in your contact lens will evaporate little by little. At that moment, your eyes would get dry and turn red.
At present, it is popular in European countries and United States to apply a kind of new material, the so-called hydrated silica gelatin, in making contact lens. The hydrated silica gelatin, which have lain in the mainstream of material used for making contact lens, are characterized by unique double channels that make the amount of oxygen passing through the lens become five or six times larger than that by the ordinary water gelatin. As a result, a qualitative change takes place in the oxygen-passed capability of the lens.
The good performance of passing oxygen through the cornea brought by hydrated silica gelatin deals well with the problems in eyes concerning getting dry and red and keeps the cornea more healthy.
The care solution is mainly used to clean and disinfect contact lens, wipe off albumen on contact lens, etc. Undoubtedly, it is essential for contact lens wearers.
In order to meet needs of different users, the care solutions are assorted into various kinds of types. You can choose basic care solution if you just want to clean and disinfect the lens on every day. Or, if you want to keep your contact lens damp, then you can choose the moisturizing solution that has the function of hydratation.
Another kind of care solution is called intensive care solution. Daily care can be matched with intensive care. The basic and moisturizing solution can be used for daily cleaning, while the intensive care solution can be applied in clearing up the lens to the core. This match is just like the combination of ordinary cleansing milk and facial cleansing mask of special effect. One is for daily use, and the other is for weekly clearing.
