Continuous wear contact lenses are designed to be worn continuously for up to 30 nights and don't need to be cleaned.

However, your eyes may not be suitable to wear them this long without a break and your optician might recommend a different wear schedule – for example a maximum of six nights' wear.

If you don't want to wear them all the time, these lenses should be cleaned each time you wear them using the cleaning solution recommended by your contact lens optician.