Contact Lens Types

Soft contact lenses have been released in many different formats since they were first developed in the 1960s.
Soft contact lenses were originally designed to be worn for 12 to 18 months and removed nightly. These contact lenses are now called 0conventional soft contact lenses0. They are usually prescribed as a specialty lens and are generally used when frequent replacement or disposable contact lenses are not available. They have the disadvantage of being more expensive and tend to accumulate surface deposits. This mode of lens wear requires more diligence with cleaning and care.
Disposable contact lenses were first released commercially in the 1980s. The first disposable lens was the Johnson and Johnson Acuvue contact lens, which was a 2 week disposable contact lens. It was a soft hydrogel lens and was primarily worn on a daily basis. The original Acuve contact lenses has only recently been discontinued. It was designed to be replaced after 2 weeks of daily wear.
Soft disposable silicon hydrogel contact lenses were first available in the 1990s. The first silicon hydrogel lenses offered were the B&L PureVision and Ciba Focus night & Day lens. Both these lenses are approved for one month extended wear. Silicon hydrogel contact lenses have […]

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