What are silicone hydrogel contact lenses

Soft contact lenses were made possible in the 1960s and 1970s by the development of water-loving polymers: large molecules made of repeated pieces (think of a long train of many railcars). These were called "hydrophilic gels" or simply "hydrogels."

Silicone hydrogel is the latest in a line of developments aimed at increasing the oxygen permeability (increased comfort, longer wear and better eye health), wet ability (better comfort) and clinical performance of contact lenses. Silicone has higher oxygen permeability, allowing more oxygen to pass, than water, so oxygen permeability is no longer tied to how much water is in each lens.

There are many types of technology transfer, even generations, of silicone hydrogels used to manufacture contact lenses today. These come with technical names such as galyfilcon, senofilcon, comfilcon and enfilcon. Each contact lens, whatever the material, is U.S. FDA-approved or cleared for specific wear and replacement conditions. While silicone hydrogels generally improve comfort and allow longer wear, check with our doctor about which contact lenses are right for us.

Benefits of silicone hydrogel lenses are discussed below.

The primary benefit of silicone hydrogel lenses is that they reduce the tradeoff between oxygen permeability and wet ability. This opens up many possibilities for silicone hydrogel contacts, including:

1.       Extended wear (sometimes for up to six straight nights and days )

2.       Continuous wear (sometimes for up to thirty days before replacement )

3.       Increased comfort and performance

4.       Choosing silicone hydrogels

There are many different types of silicone hydrogel materials that are each used to make contact lenses that address different corrective and wearing needs.

For more details on this, please browse www.cltech.com.sg.

Comments

Post a Comment

Popular posts from this blog

The ultimate guide to buying and wearing the right contact lenses

Your eyes are a precious deal for you, and that is why it is really important to choose the right  manufacturing contact lenses  for yourself so that you can make the right decision for your eye. Your choice depends on many factors like the refractive error and how much you can tolerate the wearing of contact lenses, your expectations with your eyes and how willing are you to take care of lenses and your eyes.  Here are some things that you need to consider while buying good lenses constructed with Cast moulding technology . How often are you going to wear contacts? This depends on how long and how much are you thinking of wearing contact lenses. Is it going to be only over the weekend or are you going to wear your contacts every day? If you are going for wearing contacts every day. then soft contact lenses are something that is not only going to be comfortable for you but they are fit for your daily consistent routine.  What do you think o...
Read more

Get the finest quality of contact lenses

  There are innumerable problems with people who wear spectacles. Have you ever experience it? Those unstable wearable during gym or dance classes or the geek look with ethnic dresses. These pieces of accessories have issues related to both genuine discomfort and aesthetic reasons. So, the best option here is to use contact lenses. You should never compromise with your look and comfort. This is the reason why there are so many retailers of these lenses. We all know that the Cast moulding contact lenses is in great demand due to a huge customer base. So, if you are into satisfying people with high-grade contact lenses then you have landed at the right place. We at CL Tech are following best industry practices to deliver robust and finest quality of contact lenses. We have advanced machines which are operated by skilled technicians to create products that are appreciated worldwide. We have over 100 years of experience in using and uplifting the Cast moulding technology. Being indu...
Read more

Everything you need to know before buying contact lenses

Well, it is normal for people to be confused when they are trying to buy their first contact lenses. You have to consider your lifestyle, the budget and the problems you are going to face when you start wearing them. Well, you do not have to worry about it. Contact lenses are more versatile than ever today. All you have to do is consider the pros and cons of cast molding contact lenses so that you prevent any eye infection that can affect your natural sight. The following are the different types of manufacturing contact lenses that are present in the market.  The soft contact lenses are the most used and prescribed by doctors' contact lenses. It can be used for all types of vision problems like myopia, hypermetropia, blurred vision, and age-related loss or any type of close-up vision. Not only are you comfortable and easier to adapt with, but you can use them as many times as you want with the right preservation in silicone hydrogel .  ...
Read more