Is LASIK Surgery Allowed In The Merchant Navy?

Is LASIK Allowed in the Merchant Navy?

Yes. Under the Merchant Shipping (Medical Examination) Rules and the DGS Order 16 of 2010 (as amended), candidates who have undergone refractive surgery — LASIK, Femto LASIK, Contoura Vision, SMILE, SMILE Pro, or PRK — are not disqualified from joining the Merchant Navy. This applies across Pre-Sea Training programmes (DNS, ETO, GME, graduate marine engineering) and direct-entry officer roles.

The regulatory logic is straightforward. The DGS is primarily concerned with the stability and functionality of your corrected vision at sea, not the method by which that correction was achieved. A well-healed post-LASIK candidate with stable 6/6 vision is considered medically equivalent to a naturally-sighted candidate for seafarer duties — with the caveat that the surgery must be fully healed and the refractive result stable before the medical examination. This approach mirrors how other Indian services handle refractive surgery; for instance, Indian Army recruitment rules accept LASIK under similar conditions.

DGS Vision Standards You Must Meet

Distance Vision

For deck department candidates — navigating officers, deck cadets, DNS trainees — the unaided visual acuity requirement after LASIK is 6/6 in the better eye and 6/9 in the worse eye. Engine department candidates (marine engineers, ETOs, GME trainees) have slightly more lenient standards: 6/9 in the better eye and 6/12 in the worse eye, with correction permissible to bring them to 6/6 and 6/9 respectively.

Colour Vision

Deck officers must pass the Ishihara test for colour vision — no exceptions. This is because signal lights, navigation buoys, and maritime communication depend on accurate red-green discrimination. LASIK does not affect colour vision at all, since the procedure reshapes only the cornea and does not touch the retina or optic nerve, where colour perception originates. So if you pass Ishihara before surgery, you will pass it afterwards.

Near Vision

Near vision requirements typically allow reading of N5 at 30 cm for navigating officers. This rarely becomes an issue for LASIK patients under 40, though age-related near vision changes (presbyopia) can affect candidates above 40.

The 6-Month Waiting Period Rule

This is the single most important logistical rule for Merchant Navy aspirants. Your LASIK surgery must be completed at least 6 months before your DGS medical examination. The rationale is that refractive stability — meaning your prescription has settled into its final state and is not continuing to regress or fluctuate — typically requires 3 to 6 months of healing. For the examiner to confidently certify that your vision is stable, they need documentation of a full healing period.

If you have your surgery in January and your medical is scheduled for March, you will be declared temporarily unfit regardless of how clear your vision seems. Plan your timeline accordingly. Ideally, schedule surgery at least 8 to 9 months before your target sponsorship or sailing date to allow buffer time for enhancement if needed. Our article on prescription stability before LASIK explains why this waiting window exists.

Deck Department vs Engine Department — Different Rules

Many aspirants conflate the two departments when researching eligibility. The standards differ meaningfully:

• Deck Department: Stricter unaided acuity (6/6 and 6/9), mandatory normal colour vision, strong night vision expected. No spectacles permitted on the bridge.
• Engine Department: More lenient acuity (6/9 and 6/12 unaided, correctable to 6/6 and 6/9), colour vision required for identifying warning indicators and switchboards but at a slightly less stringent threshold.
• Electro-Technical Officers (ETOs): Vision requirements align with engine department standards.
• Catering and Service Crew: Less stringent requirements overall.

Know which stream you are applying for before planning your LASIK surgery — it determines how tight the margins on your post-op result need to be.

Pre-Operative Requirements for Aspirants

Before LASIK can clear you for Merchant Navy standards, your surgeon will verify the following. Your pre-operative refractive error should not exceed ±6.0 dioptres — higher prescriptions carry higher regression risk and may leave the residual bed too thin. Your age should be at least 18 (ideally 20) with evidence of refractive stability for at least 12 months prior to surgery. Corneal thickness must be adequate to allow post-operative residual stromal bed of at least 250 microns.

Pre-op evaluation includes corneal topography, pachymetry, tear film assessment, and a full retinal examination. For aspirants specifically targeting maritime careers, it is worth discussing a career-aligned pre-op plan with your surgeon so expected outcomes match DGS thresholds.

Which Procedure Is Best for Seafarers?

All three major procedures are permitted, but they differ in practical suitability for maritime work. Standard Femto LASIK has the fastest visual recovery — most candidates achieve 6/6 within 24–48 hours. However, it creates a corneal flap that remains a lifelong structural weakness to physical trauma.

PRK has no flap, making it more robust for high-impact environments. However, its recovery is slower — 5 to 7 days of visual disturbance — and it historically has been preferred by defence medical boards for this reason. SMILE Pro offers the best of both worlds: flapless like PRK, fast recovery like LASIK, and a lower dry eye profile that is particularly useful for seafarers exposed to wind, salt spray, and dry ship interiors. Our guide on PRK vs LASIK for military and maritime candidates covers the flap vs flapless debate in more detail.

Why Transparency at the Medical Is Essential

DGS-approved medical examiners are trained to identify post-LASIK corneas using keratometry, slit-lamp examination, and topography. Attempting to conceal your surgical history will be detected and will result in permanent disqualification for dishonest disclosure. Instead, declare your surgery upfront and present the necessary documentation: your surgeon’s certificate confirming the procedure date, surgery type, pre- and post-operative refractive status, and confirmation of refractive stability for at least the past 3 months. Getting operated at an established clinic that maintains thorough records — which is part of why careful clinic selection matters — makes this documentation step straightforward.