Second: RGP Chinese full name is called high oxygen permeability hard corneal contact lenses, look at the name to know the oxygen permeability is very good, the material itself determines the oxygen permeability of the good and bad, now the highest oxygen permeability of the RGP can be done to 163, and the glasses store to sell soft lenses are generally in the 8.9-13 or so, the best is 30 or so, the oxygen permeability of the good and bad to determine the cornea of the normal physiological function of the cornea will be affected, the general soft lenses wear recommendations do not recommend that you do not buy, and the eyeglasses store. The general soft lenses wear recommended no more than 8 hours, even so will affect the cornea health, and hard lenses can theoretically wear a week without taking, but only limited to foreign countries, because of serious domestic pollution, the environment is not good, so generally wear no more than 16 hours, a lot of research has shown that there is basically no effect on the cornea.
Third: RGP is affixed to the cornea, the imaging effect and visual effect is certainly better than the frame, the higher the degree, the more obvious the difference in effect. And for high myopia, the corrected visual acuity is significantly better than the frame. This you can take the frame and RGP a comparison will understand.
Fourth: If you face the computer for a long time to wear RGP there may be a dry eye problem, because when you look at the computer blinking times will be reduced, so you wear RGP, the most conscious of the words or blinking, will be better. Of course, wearing a frame is much more convenient than RGP. You combine your actual situation, and then choose which correction method.