Daily-wear soft contact lenses are by far the most popular type of contacts worn. Made of a flexible plastic polymer, daily-wear lenses are put in each morning and taken out each night. They rest in a cleaning solution while you sleep. Daily-wear contacts come in many colors and typically last about one year.
Extended-wear soft contact lenses can be worn all the time, including while you sleep. Depending on whether you have 7-day (standard) or 30-day lenses, you only need to take out and clean your contacts once a week or once a month. Extended-wear lenses are made of soft silicone that retains moisture longer than daily-wear contacts, allows more oxygen to reach the eye, and prevents bacteria and protein buildup.
Although many patients prefer the convenience of 30-day contacts, be aware that they tend to be stiffer than 7-day lenses, scratch more easily and may be blurrier.
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:
Because they are much harder than flexible contacts, gas-permeable lenses may take some getting used to when you first start wearing them. They are also more likely than soft lenses to slip off the center of your eye and require adjustment, making them an inconvenient choice for patients who play sports or participate in other demanding activities. However, most patients soon grow accustomed to the feel of gas-permeable lenses and are satisfied with the improvement in vision they offer without the need for glasses.
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