Frequency 55 Contact Lenses

Among the most popular lenses are the Frequency 55 contact lenses, they are for people who have little or no astigmatism, also they are to be disposed every two weeks. Some Frequency 55 lenses are not only approved for everyday use but overnight wear too. They allow oxygen in even greater amount than the other types of lenses.
Now depending upon the time period the lenses are worn for, they can be divided into two categories, first the long term lenses which can be used for up to an year but they cannot be worn continuously, second, the short term lenses are made only for one time wear and can be worn for one day and night, they are disposable and have to be thrown away after that.