TL;DR
If you live with glaucoma, flying might make you feel uncertain. You may worry about how the changes in cabin pressure could affect your eyes or if it’s even safe to fly.
Understanding how air travel affects your eyes helps you prepare and stay comfortable while you’re away. Stay until the end to discover how to travel safely with glaucoma and protect your vision throughout your journey.
How air pressure affects glaucoma
Glaucoma is a condition that damages the optic nerve, often because of increased pressure inside the eye. This pressure, known as intraocular pressure, builds up when fluid in the eye doesn’t drain properly. Over time, the excess pressure can harm the optic nerve and cause gradual vision loss.
It’s natural to wonder if the pressure changes in a plane’s cabin could make things worse. Fortunately, you don’t need to worry. Aeroplane cabins are pressurised, meaning that while you’re technically at a high altitude, the air inside the cabin is controlled. The pressure difference between the cabin and ground level is minor and doesn’t significantly affect your intraocular pressure.
In other words, the cabin environment is safe for your eyes. Flying won’t trigger a sudden spike in pressure or cause damage, especially if your glaucoma is well managed and you’re following your prescribed treatment plan.
How flying might affect your eyes
Now, even though flying doesn’t directly raise your eye pressure, it can still cause temporary discomfort. The air inside planes is dry and recycled, which can irritate the eyes. If you already experience dry eyes, which is common among people with glaucoma, you might feel extra dryness or notice blurred vision during your flight.
Wearing a mask for several hours can make dryness worse because your breath can escape upward and pass over your eyes. This airflow may leave your eyes feeling gritty or sore by the time you land.
If you notice these symptoms, applying lubricating drops and blinking regularly can help. Hydration also matters, so drink water often to replace fluids lost in the dry cabin air. These small actions can make a big difference to your comfort.
Maintain your eye drop schedule while travelling
If you use prescribed glaucoma drops, always keep them in your hand luggage. This ensures you have access to them during your journey and means you won’t lose them if your checked luggage goes missing. You might need to use your drops mid-flight, especially on long journeys where your eyes feel dry or irritated.
When travelling across time zones, sticking to your medication schedule can be tricky. A simple way to manage it is to continue your normal schedule until you arrive at your destination. Once you land, adjust your timing to the new local time. Do the same when you return home. Setting alarms on your phone or marking doses in a calendar helps you stay on track, even if your routine changes.
Tips to keep your eyes comfortable in the air
Even though flying with glaucoma is generally safe, planning ahead can help you stay comfortable throughout your journey.
1. Stay hydrated
The cabin environment is dry, and dehydration can make your eyes feel irritated. Sip water regularly and avoid too much caffeine or alcohol, as both can make dryness worse.
2. Use artificial tears
As we mentioned before, preservative-free eye drops can help prevent dryness and reduce irritation caused by low humidity. Keeping them handy in your cabin bag means you can apply them whenever needed.
3. Protect your eyes from light
Cabin lighting and sunlight through the windows can strain your eyes. Consider wearing sunglasses to help reduce glare and make the flight more comfortable.
4. Take regular screen breaks
Staring at a tablet or phone for a long time can make your eyes tired. Make sure you rest your eyes occasionally, especially on long-haul flights.
These small adjustments ensure your eyes remain healthy and comfortable from take-off to landing.
Seeking medical advice before you travel
If you’re unsure whether you should fly, speak with your eye specialist before booking your trip. They can review your medical history and current eye pressure to confirm it’s safe for you to travel. Most people with glaucoma are cleared to fly, but your doctor’s advice ensures peace of mind.
Those with advanced glaucoma or circulatory problems may need extra care. Your specialist might suggest scheduling a check-up before or after your trip to monitor any changes. Some might even recommend adjusting your medication slightly to keep your pressure stable.
Also, if you’ve recently had glaucoma surgery or laser treatment, ask your ophthalmologist for personalised advice. They may recommend waiting until your eyes have healed fully before flying or may schedule follow-up appointments to monitor your pressure after you return.
If you notice any changes in your vision during or after your flight such as blurred vision, pain, or halos around lights, contact your doctor immediately. Early attention prevents complications and keeps your eyes healthy.
