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Two types are in available – rigid gas permeable (RGPs) and soft lenses. They’ve both been around a long time and have their loyal followers. Each has pros and cons. And, new uses and product enhancements have sprung up in recent years. They both correct typical vision problems, including astigmatism.
RGPs, as their long name suggests, are rigid. After a couple weeks, most people find them comfortable – but it takes time. The big plus is they’re durable, sometimes lasting for years. They’re easy to clean and handle. At the top of the list of pluses – they deliver very crisp vision. Also, doctors have had some success slowing down the development of nearsightedness in kids and adults alike through using RGPs lenses.
Soft lenses are more quickly comfortable for most wearers, but they’re less durable and can be more frustrating to handle. They also come in a variety called torics that can correct astigmatism. And, like with RGPs, you can find them in colours.
The choices can be downright overwhelming – without the help of an eye doctor to steer you in the right direction. We recommend discussing with your optician the range available to suit you.
In the world of soft lenses, two basic decisions are how often you’ll take the lenses out and how often you will completely replace them.
Daily wear lenses are for daytime use only and you remove them and clean them each night. Extended wear lenses allow you to sleep with them in and keep them in for varying intervals – depending on the brand and instructions. There are more choices nowadays – disposable and frequent replacement lenses. These have throw-away schedules ranging from daily to quarterly.
The first thing is to see an optician for a contact lens fitting. Then, let your lifestyle be your guide. You may end up with the unique approach for you – like having throwaway lenses for travel and extended wear lenses the rest of the time.