Class 1 medical after refractive surgery: the rules, authority by authority
Written August 2026 · Regulator guidance researched August 2026
Every major authority now permits refractive surgery. What they disagree about is almost everything else. The published grounding periods for the same operation run from roughly two weeks to twelve months depending on whose licence you hold — and beneath that, the regulators split into two families. Some judge you on the refraction you have after surgery. Others apply a limit to the refraction you had before it, which is a number the operation erases permanently and which survives only in the operating hospital's file. If you are flying to another country to be treated, that is the single detail worth getting right before you go.
The intervals are a long way apart
Pilots comparing notes online usually discover this the confusing way: one colleague was back on the line in a fortnight, another sat out most of a year, and both were telling the truth. The difference is jurisdictional, not clinical. Here is the published spread as researched in August 2026, with what each interval appears designed to protect.
| Authority | Published interval after surgery | What the interval is protecting |
|---|---|---|
| FAA (United States) | No fixed calendar period. Turns on the treating professional confirming stabilised vision, standards met and no significant residual effects, on Form 8500-7. Six months where the result is monovision. | Outcome rather than elapsed time — the specific risks named are glare, halos, haze and night-vision loss, which are cockpit problems rather than healing problems. |
| Transport Canada | Minimum 30 days, with topical medication other than artificial tears discontinued; a follow-up report at 30 days to the regional aviation medical office. The same clock applies to touch-ups. | The drug-effect window as much as the healing one — the medication condition is explicit, and re-treatments are not treated as minor. |
| CASA (Australia) | Minimum grounding around 2 weeks after LASIK performed with a laser keratome; commonly 4–6 weeks for other procedures. No privileges exercised until cleared. | Procedure-specific epithelial and flap healing — the only authority here whose published interval changes with the technique used. |
| UK CAA / EASA framework | Surgeon's report typically no sooner than about 8 weeks if uncomplicated; some guidance cites 3 months before a return to fit status. Class 1 additionally needs an aviation eye specialist assessment at an AeMC, at least a week after the surgeon's follow-up. | Demonstrated stability, not merely healing — the deliberate gap between two appointments exists so that a change between them can be seen. |
| DGCA (India) | Widely reported as 6–12 months post-operative, with documented stable refraction and pre-operative records produced. | Long-run regression, and the paper trail — this is the standard most explicitly interested in what you looked like before surgery. |
| CAAC (China) | Corneal refractive surgery approved for civilian pilots since 2006; from 2017, moderate myopia together with prior surgery accepted at initial examination. | Access at entry. The notable move here is not an interval but a category — previously operated candidates can enter training, not merely stay in a career. |
Published guidance and widely reported practice, researched August 2026. Intervals are minima and are frequently extended for higher pre-operative corrections or any complication. This is not legal, regulatory or medical advice — the only interval that governs you is the one your own examiner confirms in writing.
A spread of two weeks to twelve months for one operation is not sloppiness. Each regulator is answering a slightly different question, and reading the right-hand column tells you what to expect to be asked. If your authority is protecting against night-vision symptoms, expect questions about glare rather than a date. If it is protecting against regression, expect to prove a refraction held still over months, which cannot be compressed by feeling well.
The fork nobody explains: initial applicant or licence renewal
Almost every argument in pilot forums about this subject is two people in different situations talking past each other. A serving pilot with a current certificate is being revalidated: the file already contains their history, and the question is whether they still meet the standard. A cadet or career-changer applying for their first Class 1 is being assessed from nothing, and the standards written for initial issue are consistently stricter than those for renewal.
The difference bites hardest on surgery, because an initial applicant is the one likely to have been operated years earlier, for their own reasons, with no aviation career in mind at the time — and therefore the one least likely to have kept anything. A revalidating pilot generally knew to tell their examiner beforehand. Someone who had laser surgery at twenty-two and decided at twenty-eight to train commercially usually did not.
The two families: judged after, or judged before
Underneath the calendar, the authorities divide on something more consequential.
The post-operative family asks what your eyes do now. The FAA's structure is the clearest example: no interval, a report confirming stability and standards met, and an explicit list of symptoms that would disqualify. Under this approach an old operation with a good result and no symptoms is close to a non-event.
The pre-operative family applies a threshold to the refractive error you began with. In the European framework the commonly published limits for an initial Class 1 are myopia not exceeding −6.00 D, hypermetropia not exceeding +5.00 D and astigmatism not exceeding 2.00 D. It is worth being accurate about what exceeding them means: the published position is referral — to an ophthalmologist with aviation experience, or to the licensing authority's medical assessor — with a fit assessment possible after a satisfactory evaluation. It is a gate that routes you to a specialist, not a wall. India's DGCA sits in the same family from the other direction, requiring pre-operative records as a condition rather than a threshold, and Russian flight-crew examination applies limits to the pre-operative refraction too.
The consequence is documentary and it is absolute. Surgery makes your pre-operative refraction permanently unmeasurable. No examination room, no equipment and no specialist can recover it from a treated cornea. If a standard asks for it, the only place it exists is the file of the hospital that operated on you.
This is a different problem from the one that faces you after you fly home, where the difficulty is producing refractions repeated at intervals to demonstrate stability. That one is solvable at home with a named optometrist, and we set it out on the occupational medicals page because it applies well beyond aviation. The pre-operative record is the opposite kind of problem: it has exactly one window, and the window closes when you go into theatre.
Being operated in China, and certified somewhere else
China's position is genuinely permissive, and it is worth stating precisely because the English- language internet almost never does. CAAC approved corneal refractive surgery for civilian pilots in 2006, and from 2017 accepted moderate myopia together with prior surgery at initial examination. Chinese refractive surgeons therefore operate in a system where aviation candidates are a normal category rather than an unusual one, and where the country's own regulator has been examining post-surgical pilots for two decades. Chinese cohorts of civilian pilots have been followed in the published literature specifically for long-term outcomes after refractive surgery, which is not something you can say about most destinations.
None of that transfers to your licence automatically, and it would be dishonest to imply otherwise. You are certified by the authority you fly under, not by the one where you were treated. A hospital thoroughly used to CAAC requirements has no particular reason to shape a discharge file around FAA form structures or an AeMC's expectations, and will not do so unless asked. The useful move is not to hope the standards align; it is to take your own authority's documentary requirement into the pre-operative consultation and ask, item by item, whether each piece will be provided and in what language.
That conversation is also where you learn something the brochure will not tell you: which procedure your file will look best with. Where a standard sets a residual corneal thickness floor, or an examiner is known to scrutinise flap-based surgery for a physically demanding role, that can legitimately steer the discussion toward a surface or lens-based option. It does not override the clinical answer — what your cornea will actually support is decided by measurement — but where two options are both clinically reasonable, the regulatory consequence is a fair input, and your surgeon cannot weigh it if you never mention that you fly.
The medical is not a one-time hurdle
Clearing the interval is where most accounts of this stop, and it is the wrong place to stop. Refractive results can drift, and myopic regression after corneal surgery has been studied specifically in Chinese civilian pilot populations, which is precisely the group whose vision is re-tested on a fixed schedule for the rest of their working lives. Where distance acuity later falls below the standard, the published expectation is unglamorous and entirely survivable: the pilot wears spectacles or contact lenses again to meet it.
That deserves saying plainly, because the fantasy sold around refractive surgery is permanent freedom from correction, and a pilot buying that fantasy is buying the wrong thing. What surgery reliably changes is your uncorrected vision and your daily dependence on glasses. What it does not do is exempt you from a recurring standard. Read it as removing a nuisance rather than removing a requirement, and nothing about the next twenty years of medicals will feel like a betrayal.
Ask first, in writing, and keep the answer
The single most valuable thing on this page costs one email. Before you book surgery, write to your AME, DME or AeMC, state the procedure you are considering, state that it will be performed abroad, and ask what they will require and over what period. Ask for the reply in writing. Three things follow from having it: you plan the trip against a real interval rather than a forum anecdote; you know the exact document list to demand pre-operatively; and if the examiner who sees you afterwards is a different person, you hold a contemporaneous record of what you were told.
Do not, under any circumstances, treat non-disclosure as a strategy. Refractive surgery leaves visible corneal signs and is straightforwardly detectable on examination; a declared operation with a clean file is routine, while an undeclared one discovered later is a truthfulness problem rather than a vision problem, and those are far harder to recover from. The general case for declaring — and what a good surgeon's letter contains — is set out on our page for pilots and cabin crew, which also covers rostering and the split between an aeromedical timeline and a tourist one.
And the line this site repeats everywhere applies with full force here: whether your eyes can have any of these procedures at all, and which one, is determined by the operating surgeon after the full diagnostic workup. No regulator's table makes you a candidate, and nothing on this page is a clearance to fly.
Questions people actually ask
How long after LASIK or SMILE before I can hold a Class 1 medical?
It depends entirely on who issues your licence, and the published intervals are not close together. As researched in August 2026, Transport Canada works to a minimum of about 30 days with topical medication other than artificial tears discontinued; Australia's CASA describes a minimum grounding of roughly two weeks after LASIK with a laser keratome and longer, commonly four to six weeks, for other procedures; the UK CAA's guidance indicates a surgeon's report typically no sooner than around eight weeks in an uncomplicated case, with sources also citing three months before a return to fit status; and India's DGCA is widely reported as requiring six to twelve months. That is a spread of roughly two weeks to a year for the same operation. Treat every figure here as a published guide researched in August 2026, not as a clearance, and confirm the current requirement with your own examiner before booking anything.
Does the FAA have a fixed waiting period after refractive surgery?
The FAA's published approach is not built around a calendar interval at all. It turns on the treating eye care professional determining that post-operative vision has stabilised, that the applicable vision standards are met and that there are no significant residual effects such as glare, halos, haze or impaired night vision, evidenced on a Report of Eye Evaluation, FAA Form 8500-7. That report can go to the Aerospace Medical Certification Division on release from care or be brought to the next flight physical. One documented exception does carry a fixed clock: where the surgery produces a monovision result, a six-month stabilisation period applies, during which the airman flies wearing correction that meets the standard in each eye separately. Confirm the current position with your Aviation Medical Examiner rather than relying on this summary.
Can I get an initial EASA Class 1 medical if my pre-operative prescription was above the limit?
This is the question that catches people, because the threshold is applied to a number that surgery removes. The commonly published limits for an initial Class 1 applicant are myopia not exceeding -6.00 dioptres, hypermetropia not exceeding +5.00 dioptres and astigmatism not exceeding 2.00 dioptres. Being outside them is described as triggering referral to an ophthalmologist with aviation experience, or to the licensing authority's medical assessor, rather than an automatic refusal, and a satisfactory specialist evaluation can support a fit assessment. The practical consequence is documentary: an applicant assessed after surgery cannot demonstrate a pre-operative refraction from an examination room, because it no longer exists in the eye. It exists only in the operating hospital's file, which is why it has to be requested before the operation. Verify current requirements with an AeMC.
Does China's CAAC accept pilots who have had laser eye surgery?
Yes, and China moved earlier than several other systems. Corneal refractive surgery was approved for civilian pilots by the Civil Aviation Administration of China in 2006, and from 2017 moderate myopia together with previous corneal refractive surgery has been accepted at initial examination — meaning candidates who have had surgery can enter training rather than only continue an existing career. That matters if you are being examined under CAAC. It does not automatically help you if you hold a licence issued elsewhere: the operating hospital's familiarity with the Chinese standard does not shape the file for a foreign authority, and you are certified where you fly, not where you were operated.
What records do I need from a Chinese hospital for my aviation medical at home?
Ask for them in English, in writing, and ask before the operation rather than at discharge. The set that matters to an aviation examiner is: the pre-operative refraction in a comparable format with the date it was measured, the pre-operative corneal thickness and topography, the operative report naming the procedure and the platform used, the planned refractive target, the residual corneal thickness where applicable, and for a phakic lens the model, power, and the baseline vault and endothelial cell count. Add a named contact at the hospital who can answer a question from your own examiner. The pre-operative measurements are the irreplaceable part, because every other document can in principle be reconstructed later and those cannot.