Contemporary contact lenses are comfortable, long-lasting (unless by design, as in disposables) and very safe. Yet, there are some risks and limitations in wearing them and knowing what those are can help you choose the type that’s best for you. Of course, any such decision should be made in consultation with your eye care professional.
Since 1986 many have opted for Rigid Gas Permeable contact lenses. Modern designs allow for up to five times more oxygen diffusion through the plastic than those of the past. That feature is important in minimizing the odds of corneal infection. The less oxygen that makes it to the eye, the higher the odds of an infection.
On the downside, RGP lenses are a little less flexible than other types, making them less comfortable for some. But, they may be better for correcting astigmatism as a result. They also can last up to 2-3 years, which is longer than typical soft contact lenses.