Flying after cataract surgery
Uncomplicated cataract surgery is one of the shortest waits on this page — but other eye surgery is one of the longest, and the difference is a gas bubble.
The short answer. About 24 hours after uncomplicated cataract surgery. The CAA notes that straightforward cataract surgery does not usually create a cabin-pressure problem. Other intra-ocular procedures are a different matter — the CAA advises about a week, and any operation leaving a gas bubble in the eye means no flying at all until it has absorbed.
Why cataract surgery is straightforward
In cataract surgery the clouded lens is replaced with an artificial one. Nothing gaseous is left inside the eye, so there is nothing to expand as the cabin climbs. The eye is essentially a fluid-filled space, and fluid does not expand with altitude the way gas does.
That is why the wait is measured in hours rather than weeks. What you are waiting for is the immediate post-operative period — the first day, when you are still using drops frequently, vision is settling, and any early complication would show itself.
The operation where it is completely different
Some eye surgery — retinal detachment repair, and some macular procedures — deliberately leaves a gas bubble inside the eye to hold the retina in place while it heals. That bubble expands at altitude, and the pressure rise inside the eye can be severe enough to threaten sight.
This is an absolute contraindication to flying, not a cautious guideline. It lasts weeks — until the bubble has fully absorbed — and only your surgeon can tell you when that is. If you have had any retinal surgery, ask specifically whether gas was used.
Practical points after cataract surgery
- Take your eye drops in hand luggage — the schedule matters and hold bags go missing
- Cabin air is very dry and can make the eye feel gritty; lubricating drops help
- Take sunglasses; light sensitivity is common for a while
- Do not rub the eye, and be careful with luggage and overhead lockers
- Know when your post-operative check is and do not travel through it
When not to fly
Do not fly and contact your eye team urgently if you have increasing pain, sudden loss of vision, a sudden increase in floaters or flashing lights, a curtain across your vision, or a red, sticky, increasingly inflamed eye. Do not fly at all after retinal surgery involving a gas bubble until your surgeon confirms it has absorbed.
Common questions
How soon can you fly after cataract surgery?
CAA surgical guidance indicates about 24 hours after uncomplicated cataract surgery. Many surgeons are comfortable with this; some prefer you to have had your first post-operative check first. Follow your own surgeon’s advice.
Why can't I fly after retinal surgery?
Because a gas bubble may have been left inside the eye to hold the retina in place. That gas expands at altitude and can raise pressure inside the eye dangerously. It is an absolute contraindication until the bubble has absorbed — weeks, not days.
Can I fly after laser eye surgery?
Usually yes, quite quickly. Laser refractive surgery does not leave gas inside the eye. Dry cabin air can make eyes uncomfortable, so take lubricating drops and follow your clinic’s advice.
Do I need a fit to fly certificate after eye surgery?
Not usually for routine cataract surgery. If you are travelling very soon after any eye operation, or need assistance, tell the airline. If you need to cancel, a not fit to fly certificate supports the claim.
Will the pressure hurt my eye?
Not after cataract surgery. The eye is fluid-filled and does not respond to cabin pressure the way an air-filled space does. That changes entirely if gas has been deliberately introduced.
Related
Sources. The airline and clinical facts on this page were checked against these primary sources on 24 August 2026. Airline policies change without notice — always confirm with your airline before you book or travel.
Need a fit to fly certificate after surgery?
If your airline or insurer has asked for medical confirmation that you are fit to travel, a GMC-registered UK GP can review your case and issue the letter.
Get startedReviewed by a GMC-registered GP. Full refund if a certificate cannot be issued on clinical grounds.