Do Eye Drops Expire? Ensuring Proper Use and Disposal
Eye drops provide soothing relief for irritated, red, itchy eyes caused by allergies, infections, inflammation and other conditions. With nearly 40% of American adults using some type of eye drops, they rank among the most commonly used medical treatments.
But with such widespread use, mistakes around eye drop expiration dates, storage and technique often occur. Understanding proper usage and when to throw away eye drops ensures they remain safe and effective.
Types of Eye Drops with Varying Shelf Lives
All eye drops have an imprinted manufacturer expiration date, typically around 1 to 2 years from production. But some varieties last longer than others in practice once opened.
Prescription eye drops generally have the shortest in-use shelf lives, as little as 4 weeks for glaucoma and steroid formulas. Over-the-counter (OTC) artificial tear and redness relieving drops may stay fresh around 90 days once opened.
Preservative-free single use vials offer the longest viable window around 4 to 6 months unlocked. But they risk contamination without preservatives, requiring careful handling.
Watching for Red Flags of Expired Eye Drops
How can you tell when opened eye drops cross the line from fresh to unsafe? Signs of expiration include:
- - Cloudiness, particulates or film floating in the bottle
- - Leaking or damage around the dropper cap
- - Shift from clear colorless to yellow or brown discoloration
- - Stinging, burning or irritation when applied
If you notice any of these changes, it’s time to replace old eye drops with a new unopened bottle.
Maximizing Shelf Life of Opened Eye Drop Bottles
Following best practice storage goes a long way towards maintaining viability and effectiveness after opening eye drops. Protecting bottles from light, heat and contamination prevents premature expiration.
Storing Properly After First Use
Keep opened eye drops in the original carton away from direct sunlight. Bathroom medicine cabinets often get warm and humid, so store bottles in interior cupboards instead. Refrigeration can prolong shelf life of some formulas too.
Don’t transfer drops to alternate containers or pumps which increase infection exposure. Always wash hands thoroughly before handling contact lens solutions or bottles to touch your eyes.
Handling Eye Drop Bottles Properly
Another key factor involves proper handling technique using eye drops. Tips to maximize freshness include:
- - Don’t touch dropper tips when instilling drops
- - Hold bottles upright without tilting back after use
- - Don’t “top off” bottles by refilling partway through use
- - Discard immediately after expiry or 3 months maximum after opening
Avoiding backflow contamination and limiting oxidation exposure keeps eye drops in good condition longer.
Seeking Single Use Alternatives
For those needing eye drops infrequently or while travelling, single use vials offer an optimal choice. Preservative-free formulas in individually sealed doses eliminate contamination risk and bypass opened bottle expiration dilemmas.
One-time use eye drops typically run more costly than bottles. But for sporadic need they provide an economical and convenient option.
Safely Disposing of Expired or Unwanted Eye Drops
Once eye drops exceed labeled expiry or show signs of degradation, prompt disposal reduces risks. Outdated formulas not only lose effectiveness, they can cause eye irritation and infection.
Additionally, particular prescription eye drop ingredients pose safety hazards and require careful disposal protocol.
Draining Before Trash Disposal
Removing excess liquid prevents waste seepage from closed landfills. Carefully recap bottles then place upright in a sealed bag or container to catch drained fluid overnight.
Next day, wrap bottles with paper towels and discard. Avoid pouring bottles down drains which enters waterways. Supervise usage and disposal of phenylephrine decongestant eye drops around children.
Returning Unwanted Prescription Eye Drops
Check if your pharmacy or community program accepts pharmaceutical returns. These safely dispose of hazardous substances rather than releasing them to the environment through landfills or drains.
If no returns program exists, mix gels or powders like clay cat litter into the bottle to solidify remaining liquid prior to sealed bag disposal.
Seeking Proper Medical Waste Disposal
Powerful prescription eye drops for severe glaucoma, allergies and post-op contain controlled substances requiring medical waste disposal.
Contact your eye doctor, pharmacy, healthcare organization or community hazardous waste program to utilize medical waste containers for safely discarding risky medications.
Responsibly disposing of eye drops past shelf life keeps communities and the environment safer while reducing healthcare waste.
FAQs
How long do opened eye drops last?
It depends on the type, but opened bottles typically last around 1-3 months for prescription drops and 3-6 months for over-the-counter formulas before expiring.
What are signs my eye drops went bad?
Clumping, change in color, stinging/irritation, cloudiness, particles floating inside and leaks around the bottle cap all signal eye drops have likely expired.
Can you safely use eye drops past the printed expiration date?
No, using degraded eye drops past expiration increases risks of eye infection or injury. Discard bottles exceeding the manufacturer’s imprinted expiry period or 3 months maximum after first opening.
How should you dispose of expired eye drops?
Carefully drain then wrap bottles before landfill trash disposal. Return unneeded prescription eye drops to pharmacies when possible. Seek proper medical waste containers for risky medications.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult with a healthcare professional before starting any new treatment regimen.
Add Comment