Disposable soft lenses are intended to be thrown out and replaced after you’ve worn them for a certain length of time. This makes them even easier to maintain than regular soft contacts. Many disposable lenses are designed for replacement each morning, every two weeks, or even every three months. Daily-wear disposables are worn during waking hours only, while extended-wear disposables can be worn for longer periods.
Rigid, gas-permeable contacts offer several benefits over soft lenses. They:
- Can correct a wider range of vision problems, including a high degree of astigmatism;
- Allow more oxygen to pass through to the eye, reducing the risk of corneal irritation;
- Are more durable than soft lenses and don’t need to be replaced as often, lasting as long as two or three years.