It’s very inconvenient to wear heavy optical eyeglasses, especially in summer when people go to the beach. Frame glasses are not suitable in some occasions either. Therefore, contact lenses become an alternative for frame optical glasses to women. Contact lenses give many short-sighted much convenience as well as a lot of beauty.

However, some people wear contact lenses for too long time and even don’t put off them when sleeping. In fact, contact lenses should not be weaing more than eight hours. There are long-acting contact lenses advertisements on the market which says you can wear contact lenses for one week continuously. They are actually unscientific propaganda. You had better not wear contact lenses over night, and wear them in the day and put off at night. No matter how effective contact lenses can last, they can not meet full ventilation.

It's easy to let the leaf mold have the opportunity of growing and then result infection. As the contact lenses is not taken off at night, it can not be cleaned timely, dirt like dust in the air may accumulate on the contact lenses, which may easily cause conjunctiva infection. Many people have the habit of siesta. It will be best for you to take off contact lenses and put them in the matching tending liquid. You may wear them after you wake up and wash your face. It will give the eyes the same rest and relaxation as body, as which creates opportunities for eyes breathing happily. It is necessary to wash after waking up, impurities and dust in the eyes will be cleared out, which is more conductive to health and eye protection.

Some are wearing contact lenses when taking baths. Shampoo and bath liquid will immerse in the eyes which will pollute the lenses and cause eye irritation. Some people even drop their contact lenses in the bathtub when taking a bath. Therefore, when you are taking a bath, you ought to take off your contct lenses or men sunglasses,

In addition, it's still to be mentioned that people who just wear contact lenses should not wear them for a long time, it will be suitable to wear them for four to five hours. Once you fell the eyes tired, immediately remove contact lenses and gradually adapt.