Dry contact lenses can usually be fixed in the moment with rewetting drops made specifically for contacts, and prevented long-term by adjusting your habits, environment, and lens care routine. The fix depends on whether your lenses dry out occasionally or chronically, so it’s worth understanding both quick solutions and the deeper causes.
Quick Fixes for Right Now
The fastest way to rehydrate a dry lens while it’s still in your eye is to use rewetting drops labeled specifically for contact lenses. These are not the same as redness-relief drops or standard artificial tears, which can contain ingredients that damage lens material or make dryness worse. Contact-safe rewetting drops contain wetting agents like sodium hyaluronate, carboxymethylcellulose, or glycerin that bind water to the lens surface without altering its shape or clarity.
If you don’t have drops handy, try closing your eyes for 20 to 30 seconds and gently rolling them behind your lids. This redistributes your natural tear film across the lens. Blinking deliberately several times in a row can also help, since a few forceful blinks push more moisture from your tear glands than passive blinking does.
If a lens has already come out of your eye and dried on a surface, do not put it back in dry. Place it in fresh contact lens solution and let it soak for at least several hours (ideally overnight) to fully rehydrate. Soft lenses that have completely dried out and become brittle may not return to their original shape and should be discarded.
Never Use Water or Saliva
It can be tempting to rinse a dry lens under the tap, but this is one of the most dangerous things you can do. Tap water, distilled water, and saliva all harbor microorganisms that cling to soft lens material. The most serious risk is a parasitic infection called Acanthamoeba keratitis, which causes severe pain and can permanently damage vision. Exposure to water while wearing or cleaning lenses has been a known risk factor for this infection for decades, yet the behavior persists. Only sterile saline or your prescribed lens solution should ever touch your contacts.
Why Your Lenses Dry Out
Contact lenses work by absorbing water and staying hydrated against your eye. When the surrounding environment or your own tear production can’t keep up, the lens pulls moisture from your tear film instead, leaving both the lens and your eye feeling dry. Several overlapping factors control how fast this happens.
Screen Time and Blinking
Staring at a screen cuts your blink rate by roughly 50%. Since each blink refreshes the thin layer of tears coating the front of your lens, fewer blinks mean faster evaporation and that sticky, gritty feeling by the end of the day. If you work on a computer for hours, setting a reminder to blink deliberately every 20 minutes or looking away from the screen for 20 seconds can make a noticeable difference.
Low Humidity and Air Flow
Air conditioning, forced-air heating, and airplane cabins all pull moisture out of your lenses faster than normal. Research identifies around 45% relative humidity as comfortable conditions for lens wearers, while anything significantly below that accelerates tear film breakdown. A small desktop humidifier near your workspace helps. Positioning yourself so that air vents don’t blow directly toward your face matters more than most people realize.
Lens Water Content
This one is counterintuitive: lenses with higher water content actually dry out faster. Lab studies show that dehydration rates correlate strongly with initial water content, meaning a lens that starts at 60% water loses moisture more rapidly than one at 38%. Silicone hydrogel lenses, which tend to have lower water content, exhibit significantly less dehydration than traditional high-water hydrogel lenses. If dryness is a persistent problem, asking your eye care provider about a lower water content silicone hydrogel lens is worth considering.
Choosing the Right Rewetting Drops
Not all rewetting drops perform equally. The key ingredient to look for is sodium hyaluronate (sometimes listed as hyaluronic acid), a molecule that holds many times its weight in water. Drops containing 0.1% to 0.15% hyaluronic acid consistently outperform other formulations in comfort studies. Other effective wetting agents include carboxymethylcellulose (often at 0.5% concentration) and glycerin, which binds water through its chemical structure.
Some rewetting drops also contain surfactants that actively remove protein and lipid deposits from the lens surface. These deposits build up throughout the day and create dry patches where tears can’t spread evenly. A surfactant-containing drop does double duty: rehydrating the lens and clearing the gunk that caused the dryness in the first place.
One ingredient to watch out for is benzalkonium chloride (BAK), a preservative found in many standard eye drops. BAK absorbs into soft contact lens material and changes the lens’s physical properties, including its water content and surface wettability. Lenses that contain a moisture-binding polymer called PVP absorb somewhat less BAK, but the safest option is to use preservative-free drops whenever possible.
Rethinking Your Cleaning Routine
Protein and lipid buildup on your lenses creates a cycle: deposits make the surface less wettable, which makes the lens feel drier, which makes you rub your eyes, which deposits more oils. Cleaning thoroughly each night breaks this cycle.
Hydrogen peroxide-based cleaning systems are preservative-free and do an excellent job of breaking down deposits. Because they contain no chemical preservatives, they’re a strong choice if your eyes are sensitive to the ingredients in multipurpose solutions. The trade-off is time: you must let the neutralizing process complete fully (usually six hours) before putting lenses back in, or you’ll feel an intense sting. Multipurpose solutions are more convenient but contain preservatives that some people find irritating over months of daily exposure.
Regardless of which system you use, the physical step of rubbing the lens in your palm for a few seconds before rinsing removes far more deposits than soaking alone.
Daily vs. Monthly Lenses for Dryness
Many people assume switching to daily disposable lenses will solve dryness problems, but clinical research tells a more nuanced story. Studies comparing daily and monthly disposable lenses found no significant difference in average comfort level or the drop in comfort experienced toward the end of the day. Both modalities showed similar reductions in end-of-day comfort.
That said, daily lenses do eliminate deposit buildup entirely since you start fresh each morning. If your dryness is driven by deposits rather than tear film problems, dailies may still help. They also remove the variable of cleaning solution sensitivity. The best lens modality for you depends on which factor is driving your specific dryness, which is something your eye care provider can help pinpoint.
When Dryness Points to Something Deeper
If rewetting drops and habit changes aren’t making a dent, the problem may not be your lenses at all. A common underlying cause is dysfunction of the tiny oil glands lining your eyelid margins, called meibomian glands. These glands produce an oily layer that sits on top of your tears and prevents them from evaporating. When the glands become blocked by dead skin cells or thickened secretions, tears evaporate too quickly, and no contact lens will feel comfortable for long.
Signs that this might be your issue include persistent dryness that worsens throughout the day, a gritty or burning sensation even without lenses in, and visible redness or crustiness along the eyelid edges. Bacterial overgrowth in the blocked glands can make things worse by releasing irritants directly onto the eye’s surface. This condition responds well to treatment (warm compresses, lid hygiene, and sometimes prescription options), but it won’t resolve on its own.
Omega-3s and Tear Film Quality
Omega-3 fatty acids, particularly EPA and DHA from fish oil, have measurable effects on tear production and stability. In one study, people with dry eyes who took two omega-3 capsules daily (each containing 180 mg EPA and 120 mg DHA) for a month showed significant improvements in tear film stability and overall dry eye symptoms. Longer studies using higher doses over six months found even more pronounced improvements in both tear volume and tear stability compared to placebo.
The general safety ceiling for combined EPA and DHA is 3 grams per day total, with no more than 2 grams from supplements. A reasonable starting point is 360 mg EPA and 240 mg DHA daily (two standard fish oil capsules), which matches the dosing used in most of the positive research. Results typically take a few weeks to become noticeable since the fatty acids need to integrate into the oil-producing glands of your eyelids.