You reach for your contact lenses and notice a date printed on the package. They expired a few weeks ago. Are your contacts still safe to wear?
Contact lenses do expire, and you should never wear them past their expiration date. This is because the sterile packaging solution breaks down over time, putting you at risk of eye infections.
At Amherstview Eyecare, we help our patients across the Kingston area understand proper contact lens care.
Contact Lens Expiration Dates & What They Mean
Contact lens packages show expiration dates that tell you when the sterile packaging solution inside loses its effectiveness. This saline solution keeps your lenses clean and safe.
Expired contact lenses can cause serious eye problems, even if they look normal. Health Canada provides detailed guidance on contact lens safety and potential health risks.
Health Risks of Wearing Expired Contact Lenses
Eye Infections & Complications
- Bacterial infections from contaminated packaging solution
- Corneal ulcers that can damage your vision
- Fungal infections that are difficult to treat
- Severe eye irritation and redness
Vision Problems
- Blurred or cloudy vision
- Increased sensitivity to light
- Difficulty focusing on objects
- Eye pain when blinking
If you experience any of these symptoms, you may need emergency eye care.
How Long Contact Lenses Stay Safe to Use
Different types of contact lenses have varying shelf lives when stored properly. The type of lens you wear determines how long you can keep unopened packages.
Daily Disposable Lenses
Daily contact lenses typically expire 4 years from the manufacture date. You can find this date printed on each individual package.
You should throw away daily lenses after one use, even if they haven’t reached their expiration date. Never save opened daily lenses for later. Proper contact lens wear and care guidelines help you get the most from your lenses while protecting your eyes.
Weekly & Monthly Lenses
Extended-wear contact lenses usually expire 4-5 years from manufacture. These lenses come in larger packages with multiple pairs inside.
Once opened, weekly lenses last 7 days and monthly lenses last 30 days, regardless of expiration date.
Signs Your Contact Lenses Have Gone Bad
You can spot expired or damaged contact lenses by checking for certain warning signs. Look at both the package and the lenses before putting them in your eyes.
Package & Solution Problems
- Cloudy or discoloured packaging solution
- Damaged or cracked lens packaging
- Strange smell from the package
- Particles floating in the solution
Lens Condition Issues
- Lenses that tear easily when handling
- Contacts that feel rough or gritty
- Lenses with visible cracks or chips
- Contacts that don’t hold their shape
Proper Contact Lens Storage & Care Tips
Storing your contact lenses correctly helps them stay safe until the expiration date. Good storage habits protect your investment and keep your eyes healthy. Here’s what we recommend:
Storage Guidelines
- Keep unopened packages in a cool, dry place
- Avoid storing lenses in direct sunlight or heat
- Check expiration dates before opening any package
- Don’t use contact lens solution that has expired
Daily Care Routine
- Wash your hands thoroughly before handling lenses
- Use fresh contact solution every time
- Replace your lens case every 3 months
- Follow the replacement schedule your eye doctor recommends
Regular eye exams allow us to confirm that your contact lenses continue to fit properly and don’t cause health issues.
Keep Your Eyes Safe
At Amherstview Eyecare, we provide contact lens fittings for patients throughout the Kingston area. Our team can help you choose the right type of contact lenses and teach proper care techniques.
If you notice any discomfort, vision changes, or signs of eye irritation, book an eye exam with us today. Regular checkups help catch problems early and keep your eyes healthy for years to come.
