The Difference Between Hybrid Lenses vs. GP Lenses vs ... | 合法醫療器材資訊網

2019年9月19日—GPlenses.Hardcontactlensesarealsoknownasgaspermeablelensesandrigidgaspermeablelenses.Whiletheselensesarerigid,theyshould ...

For people who don’t want to wear eyeglasses, contact lenses are a great alternative. There are many types of lenses on the market, and your eye care practitioner can help you make the best choice for you. Here is a closer look at the main categories of lenses to help you make an informed decision.

Hard contact lenses are also known as gas permeable lenses and rigid gas permeable lenses. While these lenses are rigid, they should not be confused with the hard contact lenses of decades past. Those were made of PMMA (polymethyl methacrylate)[1], a type of plastic that, while lightweight and effective at correcting vision, did not allow oxygen or other gases to pass through. Modern gas permeable lenses represent a newer technology than soft lenses; they were first introduced in the late 1970s but have now become the go-to option for people who prefer a rigid lens. These len...