Prepare Before You Travel

Thorough preparation before your trip is the single most important step to maintaining clean contact lenses abroad. Start by making a detailed checklist of everything you will need for the duration of your travels, and then add extra supplies for unexpected delays. The goal is to never be caught without the proper materials to clean and store your lenses safely.

Packing the Right Supplies

Purchase travel-sized bottles of your regular multipurpose contact lens solution that meet airline liquid restrictions. Pack at least one full bottle more than you think you will need. Bring two lens cases, not one, so you always have a clean, dry case available while the other is being washed and air-dried. Include a small bottle of rewetting drops formulated for contact lenses, as airplane cabins and changing climates can cause dry eyes. Carry a portable mirror to help with lens insertion and removal in less-than-ideal conditions. A small, empty spray bottle can be useful for cleaning your hands when soap and water are not immediately available.

Research Local Conditions and Facilities

Before traveling, research your destination to understand the local water quality. In many countries, tap water is not safe for drinking and definitely not safe for contact lens care. According to the Centers for Disease Control and Prevention (CDC), tap water should never be used to rinse or store contact lenses because it contains microorganisms that can cause serious eye infections. Identify nearby pharmacies or optical stores at your destination where you can purchase solution and supplies if needed. Learn the local word for "contact lens solution" or carry a translation card. Check if your accommodation has a refrigerator for storing opened solution bottles in hot climates, as heat can degrade the preservatives in lens care products.

Keep all your contact lens supplies in your carry-on luggage, not in checked bags. If your checked luggage is lost or delayed, you will still have everything you need. Be aware that contact lens solution bottles over 100 ml (3.4 ounces) must go in checked baggage according to international liquid restrictions. Transfer small amounts of solution into TSA-approved travel containers, but label them clearly to avoid confusion. Carry your contact lens prescription and a copy of your lens brand and parameters in case you need to purchase replacements abroad. Some countries require a doctor's note for medical supplies, so having documentation can speed you through customs.

Maintain a Strict Hygiene Routine During Travel

Travel disrupts daily routines, but your contact lens hygiene must remain consistent. Never skip steps even when you are tired, jet-lagged, or in transit. Contamination can occur in seconds, and an eye infection can derail an entire trip.

Hand Washing in Challenging Environments

Always wash your hands with soap and clean water before touching your lenses. If you are in a location with questionable water quality, use bottled or purified water for hand washing. Carry alcohol-based hand sanitizer as a backup, but note that sanitizer is not a substitute for soap and water when handling lenses because it leaves a residue that can irritate your eyes. After washing, dry your hands thoroughly with a clean, lint-free towel or disposable paper towels. Avoid using air dryers in public restrooms, as they can blow dust and bacteria onto your hands.

Cleaning and Storing Your Lenses Properly

Use fresh solution every time you clean and store your lenses. Never top off old solution with new solution. Empty the lens case completely after each use, rinse it with fresh solution (not water), and let it air dry upside down on a clean tissue. Replace your lens case every month, or more frequently if you are traveling in dusty or humid environments. When traveling, consider using daily disposable lenses to eliminate the need for cleaning supplies altogether. The Food and Drug Administration (FDA) advises against using any solution that is past its expiration date or has been exposed to extreme temperatures.

Protecting Lenses from Water Exposure

Remove your contact lenses before swimming, showering, or using a hot tub. Water, whether from a tap, pool, lake, or ocean, contains Acanthamoeba and other pathogens that can cause severe corneal infections. If you plan to swim with prescription vision correction, invest in prescription swim goggles. For water sports where goggles are impractical, consider wearing daily disposables that you discard immediately after water exposure. The same precaution applies to using facial cleansing wipes or splash masks on flights. Keep your eyes closed when using any water source near your face.

Adapting to Different Climates and Environments

Travel often means encountering climates very different from what your eyes are used to. Adjust your lens care routine accordingly to maintain comfort and cleanliness.

Hot and Humid Destinations

In tropical or humid environments, your eyes may produce more sweat and oil, which can transfer to your lenses and cause blurry vision or discomfort. Wash your face with clean water and a mild cleanser before handling your lenses. Store your lens case in a cool, dry place away from direct sunlight, as heat can promote bacterial growth. Use rewetting drops more frequently to flush away debris and keep lenses hydrated. If you notice increased protein buildup, switch to a hydrogen peroxide-based cleaning system for a deeper clean, or increase the frequency of enzymatic cleaning for your lenses.

Dry, Dusty, or High-Altitude Locations

Deserts, high-altitude cities, and airplane cabins all have low humidity that can dry out contact lenses quickly. Carry lubricating rewetting drops approved for contact lens use and use them before your eyes feel dry. Wear wraparound sunglasses or protective eyewear to shield your eyes from dust, wind, and sand. Do not attempt to rinse dust or debris off your lenses while they are in your eyes. Remove the lens, clean it thoroughly with fresh solution, and reinsert it. If the debris has scratched the lens surface, replace it with a fresh lens. In extremely dusty conditions, consider switching to daily disposable lenses so you always have a clean lens each morning.

Cold and Windy Environments

Cold weather can cause contact lenses to become stiff and less comfortable. Keep your lenses and solution close to body temperature by storing them in an interior jacket pocket, not in checked luggage or an unheated compartment. Use rewetting drops formulated for sensitive eyes to combat dryness caused by indoor heating and cold wind. When moving from cold outdoors to warm indoors, allow your lenses to adjust for a few minutes before attempting to remove or insert them. Avoid opening your lens case in very cold conditions, as the solution can cool rapidly and cause discomfort upon insertion.

Managing Emergencies and Unexpected Situations

Even with careful planning, problems can arise. Having a clear action plan for common emergencies will help you respond quickly and protect your eye health.

What to Do If You Lose Your Lens Case or Solution

If you lose your lens case, do not store your lenses in anything other than a proper contact lens case. Improvised containers such as cups, bottle caps, or plastic bags are not sterile and can scratch or contaminate your lenses. Ask at hotel reception, local pharmacies, or optical shops for a replacement case. Many hotels have first-aid kits that include contact lens cases. If you run out of solution, do not use water, saliva, or any homemade saline. Look for a pharmacy or convenience store that sells contact lens solution. As a last resort, some airports have vending machines or shops in the terminal that sell travel-sized lens care products. The American Academy of Ophthalmology strongly advises against using any alternative liquids for lens storage.

Handling a Lost or Torn Lens

If you lose a contact lens or it tears while you are abroad, stop and do not panic. Rinse your eye with sterile saline or rewetting drops if available. Put on your backup glasses. If you do not have backup glasses, locate a local optometrist who can sell you a replacement lens. Keep a copy of your prescription handy. For emergencies, some online retailers can ship replacement lenses internationally, but this may take several days. Daily disposable wearers should always carry at least a week's supply of extra lenses beyond their planned travel duration.

Recognizing and Responding to Eye Infections

Be vigilant for symptoms of eye infection while traveling. Redness, pain, excessive tearing, light sensitivity, blurred vision, or unusual discharge are warning signs. Remove your lenses immediately at the first sign of discomfort and do not reinsert them until all symptoms have resolved. Wear your glasses until you can see an eye care professional. Do not attempt to treat an eye infection with over-the-counter eye drops that are not specifically formulated for infections. Seek care from a local ophthalmologist or clinic. The World Health Organization (WHO) emphasizes that prompt medical attention can prevent complications such as corneal ulcers that may cause permanent vision loss.

Choosing the Right Lens Type for Travel

Your choice of contact lens type can significantly simplify travel hygiene. Consider switching to daily disposable lenses for your trip, even if you normally wear reusable lenses. Daily disposables eliminate the need for cleaning supplies and reduce the risk of contamination from improper storage. They also allow you to start each day with a fresh, sterile lens. If you prefer to wear reusable lenses, silicone hydrogel lenses offer higher oxygen permeability, which can be beneficial for long flights and extended wear in dry environments. Discuss your travel plans with your optometrist at least two weeks before departure to get a trial pair of daily disposables if your current lenses are not suitable.

Planning for Long Flights and Layovers

Long-haul flights present unique challenges for contact lens wearers. Cabin humidity is typically below 20 percent, which can cause lenses to dry out and adhere to the eye. Plan to remove your lenses during the flight if it is longer than 8 hours. Bring your lens case and solution in your carry-on and clean your lenses in the airplane lavatory. Wash your hands carefully before handling lenses, as airplane restrooms have limited facilities. Consider switching to glasses for the duration of the flight and then inserting fresh lenses upon arrival. If you must wear lenses during the flight, use rewetting drops every hour and avoid falling asleep in your lenses unless they are specifically approved for extended wear. Sleeping in lenses not designed for overnight use increases the risk of corneal hypoxia and infection.

What to Pack

  • Contact lens solution in travel-size bottles (enough for the full trip plus a few extra days)
  • Two separate lens cases (one in use, one spare)
  • Rewetting drops approved for contact lenses
  • Daily disposable lenses (if switching for travel)
  • Backup prescription glasses in a protective case
  • Copy of your contact lens prescription and lens specifications
  • Hand sanitizer and disposable tissues or paper towels
  • Small mirror for lens insertion and removal
  • Prescription swim goggles if you plan to swim
  • Wraparound sunglasses for dusty or bright environments

Daily Checklist for Contact Lens Hygiene Abroad

  • Wash hands thoroughly with soap and clean water before handling lenses
  • Inspect lenses for any damage or debris before insertion
  • Use fresh solution for cleaning and storage every time
  • Empty and rinse lens case with solution after each use; air dry upside down
  • Replace lens case if it becomes cracked, cloudy, or contaminated
  • Remove lenses before any water contact
  • Use rewetting drops as needed throughout the day
  • Never sleep in lenses not designed for extended wear
  • At the first sign of irritation or redness, remove lenses and wear glasses
  • Replace daily disposables as intended; discard reusable lenses on schedule

Keeping contact lenses clean while traveling abroad requires extra planning and consistent discipline, but the effort is well worth it. By preparing thoroughly, maintaining strict hygiene, adapting to local conditions, and having contingency plans for emergencies, you can protect your eye health and enjoy clear vision throughout your journey. Always prioritize your eyes over convenience, and never compromise on cleanliness, even when you are tired or in a hurry. Your eyes will thank you, and your trip will be far more enjoyable without the discomfort or danger of an eye infection.