It is surely dangerous for you to wear the contact lenses for too long. Usually we only would wear it within 8 hours. The eyes are the windows of your spirits. Why don't you care it to make your life happy with clear visual world? The results of long time wearing will damage your eyes, e.g.1.Deduce of the eye immunity. No air contact will make your eyes lack of oxygen and abnormal metabolism; 2.Eyes fatigue with dry eyes, the itching and foreign body sensation, blurred vision will be the consequences of fatigue.3.Allergy of eyeball. The protein, lipid, collagen etc. will deposits on the surface of lenses, infection which arouse by virus will lead your eyes allergy. 4. The cornea abrasion, which will lead to keratohelcosis that will damage the vision. 5. Cornea nervus paralysis till keratitis ulcerative. 6. Cornea aging speed accelerating for several times than normal, it will lead you impossible to have eyes surgery when you old. 7. The description will get strong every after, the eyeball will swollen out to affect your beauty appearance.