The oxygen channel of the material itself can make the contact Eyeglass Lenses Online no longer hinder the passage of oxygen through the cornea. Therefore, no longer rely on water content to deliver oxygen, which can reduce the dry feeling of the eyes. When selecting high oxygen permeable lenses, oxygen permeability coefficient and oxygen permeability are important indicators, not water content. Oxygen permeability coefficient (DK) refers to the performance of a lens material to allow oxygen transmission, while the more commonly used oxygen permeability (Dk / T) refers to the amount of air transmission per unit thickness of the Mens Eyeglasses lens. The larger the values of oxygen permeability coefficient (DK) and oxygen permeability (Dk / T), the better.
People in the international contact lens industry generally believe that whether the oxygen permeability (Dk / T) exceeds 125 is the standard for whether the Women Eyeglasses lens can be safely worn overnight. However, due to different environments (such as plateau, confined space, etc.), the content of oxygen in the air will also be different. Therefore, choosing contact lenses with higher oxygen permeability is more beneficial to eye health. Therefore, in order to keep your eyes healthy at all times, please choose to wear high oxygen permeable Womens Designer Glasses lenses.
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