Colored contacts don't last forever - and knowing exactly when yours expire is one of the simplest things you can do to protect your eyes. Whether you've had a pair sitting in your drawer for months or you're trying to figure out if your monthly lenses are still good, this guide covers everything clearly.
The Four Types of Colored Contacts and Their Lifespans
The lifespan of colored contacts depends entirely on their design. Each type has a specific replacement schedule that you must follow to keep your eyes safe.
Daily disposables
Daily disposable colored contacts are designed for single-use only. You open a fresh blister pack, wear the lenses for the day, and discard them before sleep. You should never clean, store, or reuse daily lenses. Because you throw them away after each wear, daily disposables are the most hygienic option, as they do not allow bacteria, protein, or lipid deposits to build up over time.
Bi-weekly lenses
Bi-weekly colored contacts can be worn for up to 14 days from the day you open the packaging. You must clean them with contact lens solution every night and store them in a clean lens case with fresh solution. The 14-day wear cycle is consecutive calendar days, meaning the lenses must be discarded two weeks after opening, even if you only wore them a few times during that period.
Monthly lenses
Monthly colored contacts are designed to last up to 30 days once opened. Like bi-weekly lenses, the 30-day replacement clock begins the moment you open the blister pack, not from the number of days you actually wear them. After opening, the lenses are exposed to air, solution, and your tears, which naturally contain proteins and lipids. These deposits form a microscopic film on the lens surface that attracts bacteria. Even with daily disinfecting, this biofilm cannot be fully removed after a month, which is why monthly contacts must be discarded after 30 days. For care instructions, see our walkthrough on how to care for your contact lenses.
Yearly lenses
Yearly colored contacts offer the longest replacement cycle, lasting up to 365 days. However, because they are worn for a long period, they require meticulous daily cleaning and regular eye check-ups. To maintain eye health and avoid the accumulation of stubborn protein deposits, many optometrists recommend replacing them around the 8 to 10-month mark, rather than pushing them to the full year.
Unopened vs. Opened Expiration Dates
All contact lenses have two different types of expiration: the shelf life of the sealed package and the replacement schedule once opened.
Sealed, unopened contacts
Colored contacts in their original, sealed packaging (blister packs or glass vials) typically have a shelf life of 3 to 5 years from the date of manufacture. The manufacturer's expiration date is printed clearly on the box and the individual pack. Once this date passes, you must discard the lenses. Over time, the plastic packaging can degrade and become slightly permeable, which may allow moisture to slowly evaporate or compromise the seal's sterility, increasing the risk of bacterial contamination inside.
Opened contacts
Once you break the sterile seal of the packaging, the lens lifespan is dictated solely by its replacement schedule (daily, monthly, or yearly). A monthly lens must be discarded 30 days after opening, even if you only wore it once or twice. The lens material begins to age, dry out, and collect microscopic debris from the moment it comes into contact with air and solution.
This is probably the most important thing to understand about contact lens expiry, and it's the detail most guides gloss over. If you're unsure how long you can actually wear your lenses in a single day, this article on how long you can wear your lenses for is worth reading alongside this one.
What Affects the Safe Lifespan of Your Lenses?
Several factors can shorten the usable lifespan of your colored contacts or compromise your eye safety before the official expiration date.
Lens manufacturing quality
Premium colored contacts use high-quality materials that maintain their shape, resist deposit buildup, and allow healthy oxygen flow to the cornea. This is why we design our signature Otaku Lenses with high-performance materials that provide a stable, comfortable fit matching the natural curvature of the cornea. This design encourages healthy oxygen flow and helps reduce the risk of premature lens degradation.
Cleaning and storage habits
Every time you wear your contacts, protein and lipid deposits from your tears accumulate on the surface. If you do not clean them properly or reuse old solution in your case, this buildup accelerates, making the lenses uncomfortable and unsafe. Always store your lenses in a cool, dry place away from direct sunlight, and never store them in a humid bathroom where bacteria thrive. The CDC recommends replacing your contact lens case at least every three months, as bacterial biofilms easily form inside the case wells over time. Always rinse your case with fresh disinfecting solution, never tap water, which introduces dangerous water-borne bacteria. Exposure to tap water, pools, or showers introduces harmful pathogens to the lens material that can cause serious eye infections; for a full guide on this topic, read our article on crying, showering, and swimming with contacts.
Sleeping in contacts
Unless your lenses are specifically approved for overnight wear, sleeping in colored contacts is highly dangerous. It restricts oxygen flow to your cornea, causing significant dryness, and increases your risk of corneal ulcers and serious eye infections.
Handling dry lenses mid-wear
If your lenses begin to dry out while you are wearing them, or if you accidentally fall asleep for a short nap, your eyes can feel gritty and irritated. Do not try to rub your eyes or force the lenses out if they feel stuck to your cornea, as this can cause painful scratches. Instead, apply a few rewetting drops approved for contact lens wear to lubricate your eyes. Blink several times, and once the lens slides freely, remove it immediately. Let your eyes rest for several hours and soak the lenses in fresh disinfecting solution before wearing them again.
Signs Your Lenses Need to Go - Even Before the Date
Sometimes lenses need replacing before they hit their scheduled end date. Watch for these:
- Persistent discomfort or a gritty, scratchy sensation that doesn't go away after blinking
- Blurry or fluctuating vision that wasn't there when the lenses were new
- Visible damage - tears, chips, or discolouration on the lens itself
- Deposit buildup that doesn't clear after a proper cleaning cycle
If something feels off, take them out. Eyes are not worth the risk of pushing through discomfort.
The Risks of Wearing Expired Colored Contacts
Wearing expired contacts is not just uncomfortable; it carries serious risks of eye damage and infections.
As contact lens material ages and degrades, it loses its oxygen permeability. Without a steady supply of oxygen, your cornea can experience corneal hypoxia, leading to swelling, redness, pain, and corneal neovascularisation (the growth of abnormal blood vessels in the cornea). Additionally, degraded lens surfaces become microscopically rough, creating pockets where bacteria and fungi can cling and multiply. This significantly increases your risk of keratitis (a serious corneal infection), corneal abrasions from torn lens edges, and permanent vision loss.
Choosing Safe, Regulated Colored Contacts
All colored contacts, even purely cosmetic lenses with no vision correction, are classified as medical devices by regulatory bodies like the FDA. Many buyers do not realise that cosmetic lenses require the exact same care, cleaning, and replacement schedules as prescription lenses. The lenses we carry at Billionaire Beauties are FDA-cleared and CE-marked, meaning they meet strict safety and sterility standards. Buying cheap, unregulated lenses from unlicensed sources dramatically increases the risk of eye injury, as these products often use low-grade materials and toxic dyes. To learn more about wearing colored lenses safely, read our guide on the dos and don'ts of wearing colored contact lenses.
Quick Reference
| Lens Type | Sealed Shelf Life | Once Opened |
|---|---|---|
| Daily | 3-5 years | Discard same day |
| Bi-weekly | 3-5 years | 14 days from opening |
| Monthly | 3-5 years | 30 days from opening |
| Yearly | 3-5 years | Up to 365 days with care |
Frequently Asked Questions
Can I wear monthly contacts for longer if I only wore them a few times?
No. The monthly replacement schedule is based on consecutive days since opening, not wear frequency. Once the blister pack is opened, the lens material begins to degrade and accumulate deposits from solution and handling, making it unsafe to wear after 30 days.
How do I know if my sealed contacts are expired?
Check the printed expiration date on the box or individual blister pack. If the date has passed, discard the lenses immediately. The saline solution inside can lose its sterility and the lens material can break down over time.
What are the safest colored contacts for occasional wear?
Daily disposables are the safest option if you only wear colored contacts occasionally. Since you open a fresh, sterile pair for each wear and throw them away immediately after, you eliminate the need for cleaning and the risk of wearing expired monthly or yearly lenses.
Can I add fresh solution to the old solution in my lens case?
No. Never top up old contact lens solution. Topping up dilutes the disinfecting ingredients, leaving your lenses vulnerable to bacterial contamination. Always empty the case, rinse it with fresh solution, and fill it with entirely new solution before storing your lenses.
How do I put in and take out colored contacts safely?
Always wash your hands thoroughly with soap and water before handling your lenses. For a complete guide, check out our step-by-step tutorial on how to put in and take out contact lenses.
What if a lens gets stuck in my eye?
Don't panic and don't force it. We have a full guide on what to do if a contact lens gets stuck in your eye that walks through it step by step.
Further Reading
- How to care for your contact lenses - clean, rinse and disinfect
- How long can you wear your lenses for?
- The dos and don'ts of wearing colored contact lenses
- Cheap vs premium contact lenses - what's the difference?
- How to put in and take out contact lenses
- How to travel with contact lenses
