To avoid contamination, never touch dropper tip of the container with your hands or to any surface. Keep bottle tightly closed when not in use. Contact lenses and solutions, if not handled properly, can become contaminated by common bacteria known to cause ocular infections. Serious damage to the eye and loss of vision may result from using contaminated solutions or from wearing contaminated or damaged contact lenses. Problems with contact lenses and lens care products could result in serious injury to your eyes. It is essential that you follow your eye care professionals directions and all labeling instructions for proper use of your lenses and lens care products. Eye problems, including corneal ulcers can develop rapidly and lead to loss of vision. Therefore, if you experience eye discomfort, excessive tearing, vision changes, or redness of the eyes, immediately remove your lenses and promptly contact your eye care practitioner.