What are the matters needing attention for contact lenses when wearing silicon hydrogel?

 Nowadays, the technology development of silicon hydrogel has been very mature, and many friends turn to wear silicon hydrogel contact lenses for health reasons, which has been the general trend. So, what is the difference between wearing silicone hydrogel and hydrogel? What are the matters needing attention when wearing silicon hydrogel contact lenses?

 The very important difference between wearing silicone hydrogel and hydrogel is that the wearing feeling of silicone hydrogel is significantly higher than that of hydrogel. When everyone is used to the feeling of having nothing, suddenly wearing silicone hydrogel contact lenses, there may be some foreign body sensation that is difficult to ignore. This is the effect of the material change, and after adding the silicon molecules, the lens becomes harder in texture than before. If the eyes are particularly sensitive, it may need to readjust for some time to get used to the wearing sensation of the silicon hydrogel.

 In addition to the texture changes, the silicon hydrogel and the hydrogel are also slightly different in the design of the parameters such as the base arc. The change of tightness will directly lead to some slight changes in the fit, and the lens loosening or tightening may make people feel uncomfortable. It is recommended to adjust through fitting. In fact, before the appearance of silicon hydrogel, different brands, different types and different water content lenses will also have slight discomfort, which may be ignored by everyone. This is not a unique problem of silicon hydrogel, but a normal phenomenon.

 But there is no doubt that the silicon hydrogel is super oxygen permeable, after a short period of adaptation, we will find that the various symptoms of corneal hypoxia disappeared. Moreover, because the water content of the silicon hydrogel lens is very high, it is not easy to evaporate, so people will always feel very moist during the wearing process, and do not wear it for a long time.

However, also because of the water is relatively high, a considerable number of friends encountered trouble when picking. When the water content of the lens is relatively sufficient, the adsorption force of the lens to the eyeball is strong, and the surface of the silicon hydrogel is often a little soft and slippery, so it is really not easy to remove. Therefore, when taking the mirror, not only need a little skill, but also repeatedly have to strengthen the practice!