The kinds of contact lenses can be said to be particularly rich, just from the use of the cycle can be divided into daily, montly, half a year, yearly, and so on.Some people do not throw the daily lens away after wearing it for a day, and when they wear it again the next day, they still feel comfortable and want to save wearing it for a few more days.This is a big mistake. The life of a contact lens is the equivalent of a shelf life.
 

   The biggest advantage of the daily lens is the high water content, so not only the oxygen permeability is much higher than the traditional lens, but also the wear comfort has been greatly improved.But at the same time, the lenses also became more susceptible to proteins and bacteria.There may be no abnormal reaction, friction or dryness in the eyes during repeated wear, but this does not mean the lenses are clean and hygienic.Want to know a lot of impurity is what we cannot observe with the naked eye, hold lucky psychology and reuse always have "roll over" that day.
 

   Different types of contact lenses generally have slightly different parameters, and the official recommended cycle of use is the result of repeated tests and experiments.The daily contact lens to be able to wear one day anyway, if exceed this cycle still force to continue to wear, the bacterium that grows on lens causes a variety of eye disease extremely easily.
 

   Therefore, in order to keep our eyes healthy, we must ensure that our contact lenses are not used for more than 8 hours every day.After all, buying daily disposable contact lenses is all about hygiene and safety, so follow the daily change requirement.