Contact lenses have gained their momentum in recent years, especially when some new achievements are scored, like the invention of silicone hydrogel lenses. Silicone hydrogel contact lenses become some of the most popular alternatives among wearers of different groups, due to its uniqueness in Oxygen delivering and moisture maintaining. These lenses are completely different from conventional lenses made from other materials.
The reason why contact lenses is not widely used before the emergence of silicone hydrogel lenses is these conventional eye wear are made from non-ideal materials. These materials will either bind water in the eyes and make eyes very dry and uncomfortable or attract a lot of organic wastes and cause other problems, though they will not cause dryness.
However, all these can not be found in hydrogel lenses. Within certain wearing time, these lenses can ensure great comfort and moisture, and perfect oxygen permeability. Especially, sufficient oxygen can be allowed to go through these lenses via lenses or water- this offers wearers much greater comfort, freshness and safety. Why these lenses can do such a nice job in gas permeability? This is firmly linked to silicone, a highly gas permeable material. These special lenses can let more gas through the lenses, several times of conventional series.
Usually, lenses users find it is not an easy job to find high quality lenses, guaranteed in many aspects. Many low quality lenses have caused great troubles to a lot of wearers. On the contrary, silicone hydrogel contact lenses can offer more. These lenses can allow sufficient oxygen to go through them and help maintain great moisture. What wearers can feel are comfort and freshness.
Dryness is one of the greatest problems that bother many lenses users. This is because sufficient moisture is needed when eye blinks. If not, discomfort will appear. And if eyes are too dry, some wastes will be accumulated on the lenses- this will cause a lot of problems, like much dry, infection, etc. Therefore, it is of vital importance to completely clean and rinse these lenses. Anyway, hygiene is one of the most important aspects to be noticed in using lenses. If there are really some serious problems, just contact eye doctors immediately.
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