How does ortho-k work?

How does ortho-k work?

These special, rigid contact lenses help reset your cornea. You wear them for a set period, such as overnight, and then remove them. If you have moderate astigmatism, wearing these lenses just at night may help you get clear vision during the day. However, ortho-k is not a permanent fix. If you stop wearing the retainer lenses, your vision will likely return to how it was before. While there are lifestyle benefits, there is also a higher risk of infection associated with wearing contact lenses at night.