People wearing hard contact lenses (Rigid Gas Permeable) would often wonder on until when they can use these types of lenses. Medical experts would say that you may continue wearing them until such time that you no longer feel comfortable with it. For as long as the lenses would not cause any eye problems or infection, then you may continue using it. In fact, a medical research conducted showed evidences that hard contact lenses help to stop the elongation of the eye, a condition that could trigger myopia.
So for as long as you are diligent with your annual eye check-ups, you may continue wearing hard contact lenses to make you feel healthy and comfortable.
Here’s more about hard contact lenses or rigid gas permeable lenses: