What is risk of wearing disposable contact lens a little longer than you should?

Eye problems!: Wearing contact lenses longer can contribute to eye irritation and papillary conjunctivitis from small defects on the lens surface from wear and protein buildup. Also, the risk of infection increases. Best to replace your lenses on the prescribed schedule for good health.

Contacts: You risk an infection such as a corneal ulcer. This may damage your vision permanently and cause you to go blind, or perhaps require a corneal transplant. Do not sleep in your contact lenses.

Don't do it: Disposable contact lenses were designed for , and have significantly decreased ocular morbidity compared to old, non diposable lenses. Wearing them longer than advised only increases your risk of developing a potentially sight threatening infection, negating the whole purpose of these newer lenses.