What is hard contact lens?
At ordinary times we often say day throw, month throw, half a year throw, year throw wait to be divided by use cycle, these belong to soft contact lens.But you know what?Depending on the texture, there is also a type of contact lens called a hard contact lens.Today small make up for you to introduce this kind of contact lens.
Hard contact lenses, or RGP, are also known as breathing contact lenses.Contain among them silicon, fluorine wait for polymer, can increase the oxygen permeable of contact lens greatly, still gave good antiprecipitation sex for lens.Due to the hard material, the lens has no water absorption, which can keep the tear layer from being damaged, thus achieving the effect of long-term oxygen permeation and wetting, and avoiding various complications caused by hypoxia.
RGP contact lenses have a wide range of applications, even for teenagers.It plays an important role in the correction of high hyperopia and myopia, and can even effectively correct astigmatism.However, RGP contact lenses have a very strict procedure, only a formal professional eye hospital can be tested.
RGP contact lens entered China very late, coupled with the need for high matching technology, so up to now has not been widely popularized and promoted.However, we cannot deny the advantages of RGP. It has good oxygen permeability, so that the cornea will not edema due to hypoxia, which greatly reduces the probability of corneal cell lesions and also reduces the occurrence of dry eye syndrome.RGP is easy to maintain, and the material is strong, not easy to scratch, not easy to break, from this alone, it is much more affordable than soft contact lenses.
In years of clinical verification, the corrective effect of hard contact lenses has been affirmed and supported by many ophthalmologists at home and abroad. It is believed that in the near future, RGP hard contact lenses can also be widely used in China.