Why you should never use expired contact solution? The doctors of the American Academy of Ophthalmology and the American Optometric Association confirmed that expired contact lenses should NOT be used. The solution containing the lenses can go bad, it can become more acidic or more alkaline and with an unstable pH (acidity) can cause infection and become uncomfortable to wear.When do contact lenses expire? Contact Lens Expiration Date. It is not unusual for the expiration date of a soft contact lens to be four years from the date the lens was manufactured and packaged. Generally, the expiration date on contact lens packaging is written in a yyyy/mm format. For example, an expiration date of 2018/08 means the lenses should be considered safe for wear until the end of August 2018.Can i buy contact lenses online without a prescription? You cannot legally buy contact lenses in the United States without a valid prescription written by a licensed optometrist or ophthalmologist.Why do contact lenses expire? Contact lens prescription expiration is something mandated by state law that ensures that you are not placing incorrect contact prescriptions in your eyes. Using old, expired contacts can cause irritation, dryness and blurred vision.
Contact lens prescriptions have expiration dates, just like all other prescriptions. The expiration date is generally one year from the date the contact lenses were prescribed (unless your eye doctor believes that a short-term prescription is medically needed for ...