My experience with the Ortho-K lenses has been terrific. I used to have very weak eyesight but now I can see with perfect vision. Although I need to add ten minutes every night and morning, in general the contacts have been very convenient. Having to only wear them at night and not during the day makes them extremely easy. However, when I first started with the contacts I had some difficulty with putting them in, but after many night it’s a piece of cake! Ortho-K lenses are definitely worth it!