The right contact lens replacement schedule depends on how often you wear lenses, your eye health, and your budget. Daily disposables offer the lowest infection risk and no cleaning. Monthly lenses cost less over time and produce less waste, and extended wear contacts let you sleep in them, but carry a higher infection risk that most optometrists now recommend avoiding. The daily vs monthly contacts decision is the one most Chicago wearers actually face, and it rarely has a single right answer.
This article is for informational purposes and not a substitute for medical advice. Always consult your optometrist about the contact lens type that’s right for your eyes.
How contact lens replacement schedules work
Soft contact lenses come in a few standard replacement schedules. Daily disposables get discarded at the end of each day. Monthly lenses are cleaned, stored, and reused for up to 30 days. Extended wear contacts (sometimes called continuous wear) are FDA-approved to stay in your eyes for consecutive days, including overnight, for up to a week or in rare cases, 30 nights.
A newer one-week replacement option, Alcon’s PRECISION7, launched in the US recently and splits the difference between daily and monthly. It was introduced at the 2024 American Academy of Optometry meeting as the first product of its kind in the country. Biweekly (every two weeks) lenses also exist, though they’re less common today than they were a decade ago.
The category you end up in depends on what your eye doctor recommends based on your prescription, tear quality, lifestyle, and how your eyes handle contact lens wear over time.
Daily disposable contact lenses: what you’re actually getting
Daily disposables (often called “dailies”) are single-use lenses. You open a fresh pair each morning, wear them through the day, and throw them out before bed. There’s no cleaning solution, no case, and no schedule to track. The American Academy of Ophthalmology lists them as a common recommendation for people who wear contacts intermittently, because a brand-new lens every day eliminates the buildup problems that come with reusable lenses.
What daily disposables do well
The biggest advantage is hygiene. Because you never reuse a lens, there’s no opportunity for protein, lipid, or bacterial buildup. The Centers for Disease Control and Prevention points out that contact lens-related eye infections like microbial keratitis are strongly tied to lens wear and care habits, and daily disposables remove most of the care steps where things typically go wrong.
Daily lenses are also thinner and tend to feel more comfortable for people who experience end-of-day dryness. They’re a strong option if you travel often and don’t want to carry solution bottles, or if you’re prone to forgetting cleaning routines.
The tradeoffs
Cost is the main one. A year’s supply of daily disposables (720 lenses for both eyes, assuming daily wear) runs more than a year of monthly lenses. You’ll also generate more packaging waste, which matters to some wearers.
Cost is the main one. A year’s supply of daily disposables (720 lenses for both eyes, assuming daily wear) runs more than a year of monthly lenses. You’ll also generate more packaging waste, which matters to some wearers.
Who “daily disposables” suit
Daily disposables tend to be the best starting point if you wear contacts a few days a week rather than every day, if you have allergies or seasonal eye sensitivity, if you’ve had trouble with end-of-day comfort in reusable lenses, or if you travel frequently. They’re also often the right choice for people who play sports where losing a lens needs immediate replacement, and for anyone whose optometrist has flagged borderline dry eye symptoms during a fitting.
Monthly contact lenses: the long-standing standard
Monthly contacts are worn, cleaned, and stored in solution every night, then replaced after 30 days of use. They’ve been the default soft contact lens for decades and still represent the largest share of prescriptions, especially for full-time wearers.
What monthly lenses do well
The economics work in your favor. A year of monthly lenses (24 lenses total for both eyes) typically costs less than half what daily disposables cost, even after factoring in multipurpose solution and lens cases. For someone who wears contacts every day, the savings add up quickly.
The economics work in your favor. A year of monthly lenses (24 lenses total for both eyes) typically costs less than half what daily disposables cost, even after factoring in multipurpose solution and lens cases. For someone who wears contacts every day, the savings add up quickly.
The tradeoffs
Monthly lenses demand consistency. Skipping the nightly clean, topping off old solution instead of replacing it, or forgetting to swap in a fresh pair on day 31 all raise your infection risk. A 2024 peer-reviewed paper on contact lens compliance found that the majority of contact lens wearers don’t consistently follow wear-and-care guidance, and that the resulting problems are preventable when wearers stick to their replacement schedule.
Monthly lenses also accumulate deposits over the wear cycle. By the end of the month, they feel different than they did on day one. People with oily tear film, heavier eye makeup habits, or certain allergies tend to notice this more.
Who monthly lenses suit
Monthly lenses work well for daily full-time wearers who want to keep annual costs down, especially people with stable prescriptions and no ongoing eye health concerns. They’re a good fit if you have an established cleaning routine that actually happens every night, and if your tear chemistry doesn’t produce heavy protein deposits that make lenses feel filmy by the third week.
Extended wear contacts: the sleep-in option
Extended wear (sometimes called continuous wear) contacts are FDA-approved for wear during sleep. Depending on the specific lens, approved wear periods range from one week of continuous wear up to 30 consecutive nights.
These lenses use high-oxygen-permeability silicone hydrogel materials designed to let enough oxygen through to the cornea even while the eyelid is closed during sleep. On paper, they offer unmatched convenience: put them in, forget about them, take them out a week or month later.
What’s changed in optometry’s thinking
Over the last decade, most US optometrists have become more cautious about recommending extended wear. The American Academy of Ophthalmology’s patient guidance explicitly notes that fewer eye doctors recommend extended wear contacts because they increase the chance of getting a serious eye infection. Research has consistently shown that sleeping in contacts (even ones approved for it) raises the risk of microbial keratitis, a serious corneal infection that can threaten vision.
The CDC’s public health guidance reinforces this, pointing out that sleeping in lenses without your eye care provider’s direction is one of the highest-risk behaviors a contact lens wearer can engage in.
When extended wear still makes sense
That doesn’t mean extended wear is never the right choice. For people whose work or health circumstances genuinely require clear vision without the ability to remove lenses, an optometrist may prescribe extended wear along with detailed monitoring and shorter replacement schedules than maximum.
For most people asking about daily vs monthly contacts, though, extended wear isn’t really the third option. It’s a specialty use case.
Cost comparison: what each lens type actually costs per year
Pricing varies by brand, prescription complexity (astigmatism and multifocal designs cost more), and whether you buy an annual supply at once. Based on 2024 research from CareCredit and industry pricing data, here’s a general range for both eyes without insurance:
| Lens type | Typical annual cost (both eyes) |
| Daily disposables | $600 to $1,200 |
| Biweekly | $225 to $560 |
| Monthly | $180 to $500 |
| RGP (gas permeable, reusable) | $150 to $350 |
These numbers don’t include the required annual eye exam or contact lens fitting, which typically adds $120 to $250 without insurance. Monthly lenses also need multipurpose solution, which runs around $100 to $150 per year.
Vision insurance typically covers a portion of the lenses themselves (usually a $100 to $150 annual allowance) and part of the exam and fitting. FSA and HSA dollars can cover contact lenses, solutions, exams, and cases. We break down contact lens costs and insurance coverage in more detail in our guide on how much contacts cost in Chicago.
Which contact lens type fits your lifestyle?
The daily vs monthly contacts question rarely has a single right answer. It depends on who you are.
You’re a new contact lens wearer
Your optometrist will likely start you in daily disposables. The reasoning is simple: fewer steps means fewer chances for something to go wrong while you build handling skills. Once you’re comfortable inserting, removing, and caring for lenses, you and your doctor can revisit monthly lenses if cost savings matter. Our guide on switching from glasses to contacts walks through what to expect at your first fitting.
You wear contacts three or fewer days a week
Daily disposables usually win here. A monthly lens sitting in solution for 25 days a month is still aging. You’re paying for lenses you’re not wearing, and the hygiene advantage of a fresh lens on the days you do wear them is real.
You wear contacts every day, all day
Monthly lenses probably make more sense for you financially, assuming you’re disciplined about the nightly cleaning routine. The annual savings can be several hundred dollars compared to dailies, especially if you have a stable prescription.
You work at a computer for 8 or more hours
Digital eye strain and reduced blink rates dry out your eyes regardless of lens type. But heavy screen users often report that daily disposables feel better at 6 pm than monthly lenses do, because there’s no surface buildup to compound the dryness. Your current dry eye management routine also factors in.
You travel frequently or work out daily
Daily disposables remove the hassle of carrying solution, keeping a case clean, and worrying about lost or dirty lenses. If you’ve ever had to improvise contact care in a hotel bathroom at 11 pm, you know the appeal.
You have astigmatism or presbyopia
Both are correctable with contact lenses, but the lens choice matters. Toric lenses for astigmatism come in daily and monthly replacement schedules. Multifocal contacts for presbyopia do too. The daily vs monthly decision for specialty prescriptions often leans monthly, because daily versions of toric and multifocal lenses can be harder to find or more expensive.
You’ve had dry eye symptoms
Dry eye and contact lens wear have a complicated relationship. Some wearers do best on dailies because there’s no accumulated deposit. Others do better on specific silicone hydrogel monthly lenses with high oxygen transmission. Dry eye is meaningfully more common among contact lens wearers, and the right lens often involves trial fittings rather than guesswork. Our guide on contacts for dry eyes covers what to try.
What about one-week (PRECISION7) lenses?
Alcon’s PRECISION7 is the first one-week replacement lens approved in the US. It sits between daily and monthly in terms of both cost and care requirements. You wear each lens for seven days (removing it nightly to sleep), then discard it and open a new one.
Whether it’s worth considering depends on your situation. Someone who wears contacts full-time but wants fresher lenses than a monthly schedule provides, and is willing to pay for it, might find it a good middle ground. It’s relatively new in the US market and not every optometrist carries it yet, so ask during your fitting.
Safety considerations that apply across all lens types
Regardless of which replacement schedule you land on, a few practices protect your eye health.
Don’t sleep in contacts unless your optometrist has specifically prescribed you a lens approved for overnight wear. The CDC is explicit about the risks of sleeping in lenses.
Don’t expose your lenses to water. Showering, swimming, or using a hot tub while wearing contacts raises the risk of Acanthamoeba keratitis, a rare but serious infection. If water does touch your lenses, the CDC recommends removing them as soon as possible and either discarding them or disinfecting them before wearing them again.
Replace your lens case every three months, even if you’re using a multipurpose solution correctly. Cases build up biofilm over time.
Keep a current pair of backup glasses. If your eyes are ever red, painful, light-sensitive, or discharging, you need to take the lenses out and switch to glasses until you can see your optometrist. These can be early signs of infection that require treatment.
Keep your annual contact lens exam. A standard eye exam measures your prescription, but a contact lens exam also checks the fit of your lenses on your cornea, evaluates your tear film, and looks for any early signs of lens-related complications. Your prescription isn’t valid without this exam, and getting fitted is a separate appointment from a standard eye exam.
Signs your current lens type isn’t working for you
A lot of contact lens wearers live with problems they’ve quietly accepted as normal. These are often signs that a different replacement schedule, material, or fit would work better.
End-of-day discomfort that wasn’t there at month one. If your lenses felt fine when you got them but feel dry, gritty, or heavy by evening, that often points to surface buildup on reusable lenses, a material mismatch with your tear chemistry, or wear times that exceed what your eyes tolerate.
Red eyes after removing your lenses. Mild redness on occasion isn’t unusual. Persistent redness, especially with a burning sensation, is worth raising at your next visit.
Vision that fluctuates throughout the day. Clear in the morning, blurry by afternoon, clear again after you blink hard. This pattern often indicates tear film instability, sometimes made worse by the lens itself.
Frequent lens tears or losses. If you’re going through lenses faster than the replacement schedule calls for, your lens might be too thin for your handling style, or the fit might not match your cornea well.
Avoiding certain activities because of your contacts. If you skip the gym, stop wearing contacts on long workdays, or leave them out for dinners because they bother you, that’s a fit or type issue worth solving.
None of these is a reason to abandon contact lenses. There are reasons to revisit the decision at your next annual exam.
How the fitting process works at CustomEyes
Contact lens fittings at any CustomEyes location start with a full eye exam to establish your current prescription. From there, your optometrist evaluates your corneal curvature, your tear film quality, your pupil size in different lighting, and any history of dry eye, allergies, or previous contact lens issues.
Based on that picture, you’ll typically try one or two trial pairs. You wear them for a period (sometimes same-day, sometimes a week at home), then return to discuss comfort, vision clarity, and any issues. The goal is landing on a lens and replacement schedule that works for your eyes specifically, not just the most common prescription.
If your current contacts feel uncomfortable by the end of the day, give you blurred vision, or leave your eyes red after removal, those are all signs your fit needs a second look. Plenty of people wear the wrong lens type for years without realizing it. Reviewing common mistakes when removing contact lenses can also help you identify where your routine may need an adjustment.
Frequently asked questions
Can I switch between daily and monthly contacts?
Yes, with an updated prescription. Your contact lens prescription specifies the exact lens and parameters, so switching from one brand or schedule to another requires a new fitting. A good optometrist will often walk you through both options if you’re unsure which suits your life better.
Are daily contacts healthier for my eyes than monthly?
On average, daily disposables carry a lower risk of infection than reusable lenses, mainly because there’s less opportunity for contamination. But a monthly lens worn correctly and replaced on time is still a safe medical device. Compliance matters more than category.
Can I sleep in my monthly contacts?
Not unless your optometrist has prescribed them for extended wear and confirmed it’s safe for your eyes. Sleeping in standard monthly lenses, not approved for overnight wear, meaningfully raises your infection risk.
How long does a contact lens fitting take?
A first-time fitting typically runs 30 to 60 minutes beyond your eye exam. Follow-up visits to confirm the fit are usually shorter. You may need one or two follow-ups before finalizing your prescription.
What if I have astigmatism? Can I still wear daily contacts?
Yes. Toric daily disposables exist and have improved considerably in recent years.
What if my eyes feel tired by mid-afternoon?
Mid-day dryness is one of the most common complaints in contact lens wearers. Sometimes it’s the lens material, sometimes it’s wear time, sometimes it’s an underlying dry eye issue that needs treatment.
How long can I wear my contacts each day?
Most soft contact lenses are designed for 10 to 14 hours of wear per day. Your optometrist will give you a specific recommendation based on your lens type and eye health.
Finding the right contacts in Chicago and Evanston
The daily vs monthly contacts decision is one of the most common conversations we have during fittings. There isn’t a universal right answer, and the best lens for your eyes two years from now might not be the best lens today. Your tear film changes. Your prescription changes. Your work and lifestyle shift. Revisiting the question at your annual contact lens exam is part of the process.
Ready to talk through your options with an optometrist who takes the time to understand your routine? Book an appointment to get fitted. CustomEyes has eight convenient locations serving Chicago and Evanston: Evanston, LaSalle, Ogilvie, River North, Roscoe Village, Southport, Broadway (Lakeview), and Logan Square.
