Is it Safe to Use Unopened Contact Lenses Past Their Expiry Date?
When it comes to contact lenses, safety and hygiene are paramount. This article addresses the question of using unopened and expired contact lenses, providing guidance based on various factors and practical tips for safe usage.
Understanding Expiry Dates and Sterility
Contact lenses often come in a sterile package, designed to minimize the risk of contamination. Once the package is opened, the lenses are no longer sterile. It’s essential to use a reservoir or solution-filled lens case to maintain the sterile environment. If you’ve kept unopened lenses in their original packaging, they are generally safe to use, but caution is advised. Just be sure to check the expiry date.
Checking the Expiry Date
Most monthly contact lenses come with a shelf life of up to 4 years from the manufacturing date, which is typically printed on the packaging. It is crucial to check and adhere to the expiry date to avoid any risks associated with using outdated or degraded solutions.
How to Safely Use Unopened, Expired Lenses
Provided that you have kept the lenses in the original sterile packaging, they can be used even if the expiry date has passed by a few months. However, it’s not advisable to use lenses that are well past their expiry date as the storage solutions can degrade with time. Here are some steps to ensure the safety and proper condition of your lenses:
Clean and disinfect again: Transfer the lenses to a clean lens case with fresh storage solution and disinfect them overnight. Check for damage or contamination: Inspect the lenses for any signs of damage or contamination. If everything is clear, they can be used. Examine the lens case: Open the lens case and check the insides, edges, and lenses for any possible contamination. Look for any blackish or whitish growth, which could indicate mold or fungus. Vigilant cleaning: If you're unsure, use a peroxide system to deep clean and disinfect the lenses overnight before wearing them. Professional assessment: If you're still unsure or find any contamination, consult an eye doctor for a professional assessment.Conclusion
In conclusion, unopened contact lenses up to ten months before their expiry date can be safely used after proper cleaning and disinfection. However, the condition and integrity of the packaging and storage solution are crucial. Always prioritize your eye health, and if in doubt, seek professional advice.