Conventional contact lenses, also called vial contacts, are individually packaged and sold. With the proper care and cleaning, conventional/vial contacts can be wearable from several months to up to a year. Durasoft, Hydrasoft, and Optima are just a few of the popular brands in the conventional contact lens category.
If you are having any unexplained eye discomfort, watering, vision change or redness, remove your lenses immediately and consult your eye care professional before wearing your lenses again.