Eye Care Tips for Travelers
How Air Travel Affects Your Eyes
Commercial aircraft cabins have very low humidity. According to the AAO, cabin air has 10-20% relative humidity, which is far below the 30-50% most people find comfortable. This dry air accelerates tear evaporation, leaving your eyes irritated, gritty, and red during and after flights.
Contact lens wearers feel the effect more than glasses wearers because the lens itself loses moisture and tightens on the eye. Use preservative-free artificial tears before boarding and every one to two hours during the flight to keep your ocular surface stable.
According to the AAO, contact lens wearers should remove their lenses before sleeping on long flights. Extended wear in dry cabin conditions increases the risk of corneal swelling and discomfort. Pack your lens case, solution, and backup glasses in your carry-on luggage where you can reach them.
If you switch to glasses during a long flight, your eyes will stay more comfortable and recover faster after landing. Always carry at least two bottles of contact lens solution, as some destinations may not stock your preferred brand.
UV radiation increases at altitude and near reflective surfaces like water, sand, and snow. According to the AAO, UV-blocking sunglasses with wraparound frames provide the best protection, during high-altitude activities, beach trips, or skiing. Cumulative UV exposure contributes to cataracts and pterygia over a lifetime.
Choose sunglasses that block 99-100% of UVA and UVB rays. If you wear prescription glasses, consider prescription sunglasses or photochromic lenses that darken in bright light.
Eye Safety After Eye Surgery
According to the AAO, patients who have had cataract surgery, glaucoma surgery, or LASIK can fly the following day unless complications or an intraocular gas bubble are present. Your surgeon must clear you before you travel. Schedule any planned surgery with enough recovery time before your trip.
If you are unsure about your clearance, call your surgeon's office before booking flights. Knowing the timeline in advance prevents last-minute cancellations.
According to the AAO, intraocular gas bubbles used in retinal surgery expand at altitude because commercial cabin pressure does not match sea level. This expansion can cause a dangerous spike in eye pressure and risk permanent vision loss. You must wait until the gas bubble is completely absorbed before flying on any aircraft.
Your retinal surgeon will tell you when the bubble has cleared. This waiting period can range from weeks to months depending on the type of gas used. Do not fly, even on short flights, until your surgeon confirms it is safe.
Pack the following in your carry-on luggage: preservative-free artificial tears, your current glasses (even if you prefer contacts), a copy of your eyeglass and contact lens prescription, contact lens solution in TSA-compliant containers, and any prescribed eye drops. If your glasses break or your contacts become unusable during your trip, having a prescription copy allows you to get replacements abroad.
- Artificial tears (preservative-free, multiple single-use vials)
- Backup glasses in a hard case
- Written prescription for glasses and contacts
- Contact lens solution and spare lenses
Eye Care in Different Travel Environments
Sand, salt water, and intense UV reflection at the beach can irritate and damage your eyes. Wear wraparound sunglasses and a wide-brimmed hat. Remove contact lenses before swimming in any water, including the ocean and hotel pools. Rinse your closed eyelids with fresh water after ocean exposure.
Pack goggles if you plan to swim or snorkel. Prescription swim goggles eliminate the temptation to wear contacts in the water.
Altitude increases UV exposure and lowers humidity, compounding dry eye. Snow reflects up to 80% of UV rays, making ski goggles with UV protection essential. Wind at altitude strips moisture from your eyes faster than at sea level.
Apply lubricating drops before outdoor activities and again when you return inside. If you wear contacts in cold, windy conditions, switch to daily disposables that you can discard after exposure.
According to the NEI, travelers to regions with endemic eye infections should take extra precautions with hand hygiene and contact lens care. In areas where clean water is unreliable, use only bottled water or sterile saline for rinsing your face near your eyes. Never store contact lenses in any type of water.
Wash your hands with soap or sanitizer before touching your eyes or handling contact lenses. Carry hand sanitizer for situations where clean water is not available.
Managing Eye Conditions While Traveling
If you use prescription eye drops for glaucoma, dry eye, or other conditions, pack enough for your entire trip plus a few extra days in case of travel delays. Keep drops in your carry-on, not checked luggage, to avoid temperature extremes in the cargo hold. Check customs regulations for your destination regarding medication import.
Set reminders on your phone for drop schedules, when crossing time zones. Maintaining your medication routine protects your eyes even when your daily schedule is disrupted.
Jet lag can worsen dry eye symptoms because disrupted sleep affects tear production and eye surface recovery. Give yourself time to adjust, use lubricating drops more during the first few days, and prioritize sleep to help your tear film normalize.
Screen use on flights and in airports compounds the effect. Limit screen time during transit and blink consciously to maintain your tear film.
If you experience an eye emergency during travel, seek care at a local hospital or eye clinic. Your travel insurance should cover emergency eye care. Carrying your prescription, your eye doctor's contact information, and a brief medical history summary makes it easier for a foreign provider to help you quickly.
For non-emergency concerns, many conditions can wait until you return home. Call your eye doctor's office for guidance on whether your situation needs local care or can be managed until you get back.
Travel Eye Care Questions
Normal cabin pressurization does not damage healthy eyes. The concern is specific to people with intraocular gas bubbles from retinal surgery. If you have not had recent eye surgery involving gas, cabin pressure changes will not harm your eyes.
Glasses are more comfortable for flights longer than a few hours because they do not dry out in low-humidity cabin air. If you prefer contacts, use lubricating drops and switch to glasses before sleeping. Daily disposable lenses are the safest option for travel because you can discard them after a flight.
Eye drops sold in other countries may contain different preservatives, concentrations, or active ingredients than what you use at home. If you need drops during your trip, preservative-free artificial tears are the safest choice. For prescription drops, try to bring enough from home to last your entire trip.
Redeye flights combine sleep deprivation, dry cabin air, and alcohol or caffeine consumption. Your tear film production drops during sleep, and the dry cabin accelerates evaporation of what little moisture remains. Using lubricating drops before sleeping on the plane and again upon waking can reduce the post-redeye discomfort.
Diving with soft contact lenses carries infection risk from water exposure, and pressure changes can cause bubbles to form under the lens. Prescription dive masks are a safer alternative. If you choose to wear contacts while diving, use daily disposable lenses and discard them after the dive. Rinse your eyes with sterile saline afterward.
A copy of your prescription stored in your phone or travel documents allows any optical shop to make replacement glasses. Many countries have optical stores that can fill prescriptions quickly. If you lose your prescription entirely, a local eye care provider can perform a brief exam to determine your correction.
Travel with Healthy Eyes
A little preparation protects your eyes throughout any trip. Pack your eye care essentials in your carry-on, bring UV-blocking sunglasses, and schedule a comprehensive eye exam before extended travel to make sure your prescription is current and your eyes are healthy.