Continuous Wear Lenses

Extended wear contact lenses were first reported as early as 1976 however these lenses were gas-permeable lenses (GP)-hard lenses. Extended wear contact lenses are generally worn for no more than 6 nights per week. At the start of the new millennium extended and continuous wear soft contact lenses become popular with the introduction of silicone hydrogel materials. Continuous wear lenses are worn for periods of up to 30 nights.
The popularity of these lenses, both extended and continuous wear, are due to the potential problems with contact lens cleaning solutions. Cleaning solutions do not remove all proteins, lipids and other deposits that can collect on the contact lens. Unfortunately these deposits can lead to complications such as discomfort and inflammation.
Continuous lenses are convenient alternative to daily disposables and are also available to correct astigmatism, presbyopia, farsightedness or nearsightedness.