Silicone hydrogel contact lenses are so comfortable: but do you know what
The name of the silicone hydrogel contact lens comes from the material used to produce the lens. Like many other things, as humans develop higher technologies and materials, contact lenses have been improved. But what are the advantages of silicon hydrogel contact lenses? Let us discuss what a silicone hydrogel contact lens is and why it is different.
What is a silicone hydrogel contact lens?
Due to the invention of hydrophilic polymer materials (repeated macromolecules, such as long-distance trains with multiple seats), soft contact lenses were introduced in the 1960s and 1970s. This material is called "hydrophilic gel", or simply "hydrogel".
Silicone hydrogel is the latest material designed to improve oxygen permeability (more comfortable, longer wearing time, and make the eyes healthier), more moist (more comfortable), and the clinical performance of contact lenses. Silicone rubber has a higher oxygen permeability and can pass more oxygen than water, so the oxygen permeability of the lens is no longer limited by the water content in the lens.
Types of silicone hydrogels
There are many different types of silicon hydrogels used in the production of contact lenses, including galyfilcon, senofilcon, comfilcon and enfilcon.
Regardless of the material used, contact lenses are approved or approved for specific wearing and replacement conditions by the US Food and Drug Administration. Although silicone hydrogels generally improve comfort and allow longer wearing time, please consult your doctor to find out which contact lens is suitable for your situation.
Benefits of silicone hydrogel contact lenses
The main advantage of silicone hydrogel contact lenses is that they can improve both oxygen permeability and moisture, which brings many possibilities for silicone hydrogel contact lenses, including:
- Wear for a long time (sometimes up to six consecutive days and six nights)
- Continuous wear (can be used for more than 30 days)
- Improve comfort and performance
Choose silicone hydrogel contact lenses
There are many different types of silicone hydrogel materials that can be used to produce contact lenses that meet different correction and wearing needs. Therefore, although understanding the benefits of silicone hydrogels can help you understand your preferences, you should also consult an ophthalmologist to select your own contact lenses and evaluate whether contact lens wear and replacement time has been approved by the US FDA.
In the same field how to remove the silicon hydrogel contact lens
Because of the characteristics of the silicone hydrogel, the lens will feel a little "stomping hands", please dry your fingers before removing, and remove before taking a shower, or take a break after taking a shower. This article does not recommend removing CON when you take a shower. It is more difficult to remove because of wet hands and because of the rapid evaporation of water.
You can refer to the following method for removing CON (starting at 1:50), first pull the CON gently, and then remove it first.