The lenses that you were during the night,
It's called Ortho-K, or Orthokeratology, and involves wearing
special contact lenses while you sleep, to correct the curvature of
the eye. When you wake up the next morning and take out the lenses,
you have perfect vision throughout the day.
Any idea anyone?
just visit any optical shop with an experienced
optometrist/optician and they'll be able to fit one for you or at
least let you know how to get one.
be prepared to pay as they cost quite a bit. they also require
care so if you're the lazy sort you might not want to go for
them.
seek advice from an optometrist before making any decision. it
may not be like what you think.