Ortho-K for public-service exams: Mossos, Bombers, Guardia Urbana

Many public-service exams in Catalonia — Mossos d'Esquadra, Bombers de la Generalitat or Bombers de Barcelona, and Guardia Urbana — require a minimum uncorrected visual acuity. Ortho-K is one of the few reversible options that lets you meet that requirement during the day without glasses or contact lenses, and without refractive surgery. If you're preparing for a public exam in Barcelona, here's how Ortho-K fits into your timeline.

Opositor a Mossos d'Esquadra estudiando — Orto-K

Who this page is for

Mossos d'Esquadra

Catalan regional police. Exams published in the DOGC, with medical exclusions including uncorrected visual acuity requirements.

Bombers (Generalitat & Bombers de Barcelona / SPEIS)

Fire services with demanding medical criteria due to operational risk: minimum uncorrected acuity and limits on recent refractive surgery.

Guàrdia Urbana of Barcelona

Barcelona's local police. Exams published in the BOPB with criteria similar to Mossos and the usual limits on refractive surgery.

Indicative visual requirements

For reference, these figures appear most often in recent exams. They are indicative: the medical table in each official call is the source of truth.

BodyUncorrected acuityWith correctionTypical notes
Mossos d'Esquadra≥1/2 in each eye or ≥2/3 binocular≥2/3 binocularExclusions for corneal pathology and limits on refractive surgery.
Bombers Generalitat / Barcelona≥1/2 in each eye (commonly required)≥2/3 binocularDemanding physical tests; strict visual criteria.
Guàrdia Urbana of Barcelona≥1/2 in each eye or ≥2/3 binocular≥2/3 binocularTable published in BOPB; check each specific call.

Indicative figures. Always check the current official exam call (DOGC for Mossos and Generalitat firefighters, BOPB for Guardia Urbana, specific bases for Bombers de Barcelona). Requirements may change between exam calls and bodies.

Why Ortho-K fits public-service exams

  • Daytime vision without glasses or contacts: the eye is bare during exam and physical tests.
  • It is not surgery: the effect is reversible and can be stopped.
  • Compatible with demanding physical tests, including swimming and running.
  • Allows you to plan the medical exam on a controlled timeline.
  • Personalised fitting with regular professional follow-up.

Refractive surgery vs Ortho-K for public exams

Ortho-K

  • Reversible: stop wearing the lenses and the cornea returns to baseline.
  • Not surgery: post-surgery minimum periods don't apply.
  • Requires consistent overnight wear and follow-up.
  • Suitability depends on prescription and corneal shape.

Refractive surgery (LASIK, PRK, SMILE)

  • Permanent change to the cornea.
  • Some exam calls require a minimum period after surgery.
  • Not always accepted depending on the exam call.
  • Irreversible: requires detailed ophthalmological evaluation.

Realistic timelines

We recommend starting at least 2-3 months before the medical exam. Daytime vision stabilises during the first weeks and it's wise to leave room for check-ups and fine adjustments before the test.

Why Ortho-K appeals to public-exam candidates.

The lenses are used only during sleep, and upon waking the cornea remains reshaped long enough for sharp daytime vision. That means the physical tests (running, swimming, circuit) and the ophthalmology screening are performed without glasses or contacts in the eye — which is precisely what many calls evaluate.

Mossos d'Esquadra.

The Generalitat publishes the medical-exclusions table in the DOGC each year. Historically a minimum uncorrected visual acuity of at least 1/2 per eye or 2/3 binocular has been required, with tolerance to correction and exclusion of significant corneal pathology and of refractive surgery without a minimum stabilisation period. Ortho-K, not being surgery and being reversible, fits well within this framework whenever the case allows.

Bombers de la Generalitat and Bombers de Barcelona (SPEIS).

Fire-service corps tend to apply similar visual criteria and, in some calls, stricter ones due to the safety component: minimum uncorrected acuity, exclusion of certain pathologies and limits on recent refractive surgery. Check the specific call you're applying to.

Guardia Urbana de Barcelona and local police.

The Guardia Urbana publishes its medical table in the BOPB, with criteria similar to Mossos: minimum uncorrected visual acuity, absence of disabling eye pathology and usually limits on refractive surgery. Ortho-K is evaluated case by case based on the call.

Indicative figures. As a reference, many calls work with typical values

acuity ≥1/2 uncorrected per eye, ≥2/3 binocular uncorrected and ≥2/3 corrected. These are indicative: always check the current official medical table, which changes between calls and corps.

Refractive surgery vs Ortho-K.

Surgery (LASIK, PRK, SMILE) modifies the cornea permanently and, in some calls, requires a minimum period since the procedure or is directly restricted. Ortho-K is not surgery: the effect is reversible and can be discontinued. For many candidates it's a more conservative option during preparation.

Realistic timelines.

We recommend starting the process at least 2-3 months before the medical tests. Daytime vision stabilises in the first weeks and you'll want margin for check-ups and adjustments. The earlier you start, the more predictable the result on test day.

Other corps.

The above also applies, with nuances, to candidates for Policia Nacional, Guardia Civil, the military and other profiles with visual requirements. The assessment must always be individual and based on the specific medical table of your call.

Important.

Ortho-K does not guarantee passing the medical screening nor replaces the judgement of the tribunal's medical services. Your candidacy depends on prescription, corneal shape, ocular health and the specific call. The only way to know if it fits your case is a full optometric assessment.

Other bodies with visual requirements

Everything on this page also applies, with nuances, to candidates for Policía Nacional, Guardia Civil, the armed forces, air traffic controllers and other regulated professions. Assessment must always start from the specific call and an individual study.

Book your assessment

The only way to know if Ortho-K fits your exam path is a full optometric assessment. You can book it at either clinic.

Looptica

Optical clinic in Barcelona for Ortho-K assessment, overnight lenses and myopia control.

Òptica CODE

Optical clinic in Barcelona specialised in visual health, contact lens fitting and personalised solutions.

Frequently asked questions

Does Ortho-K work for the medical screening of Mossos, Bombers or Guardia Urbana?+
It can be a valid option because it lets you sit the tests without glasses or contacts and without having had surgery. The final decision depends on the current medical table of each call and the individual assessment of your case.
How long before the tests should I start Ortho-K?+
We recommend at least 2-3 months before the medical screening. Visual stabilisation happens in the first weeks and you want room for check-ups and fine adjustments.
Are the lenses detected in the ophthalmology exam?+
The lenses are only worn at night and removed on waking. The exam is done with no lens in the eye. Ortho-K leaves a temporary mark on corneal topography, which is relevant if the call includes that test; we'll inform you during the assessment.
Is it compatible with the physical tests (swimming, running, circuit)?+
Yes. Because the physical tests are done without glasses or contacts, Ortho-K is especially comfortable for water and high-demand tests.
Is Ortho-K or refractive surgery better for public exams?+
There's no single answer. Ortho-K is reversible and non-surgical, which for some calls and profiles is an advantage. Surgery is permanent and may have minimum waiting periods before applying depending on the call. The right choice depends on your case, prescription and the specific terms.
What if the call restricts recent use of contact lenses?+
Some calls ask candidates not to have used contact lenses for a few hours before the test. Ortho-K is removed on waking, so the exam happens many hours after last use. We'll review the specific terms together at your assessment.
Is it covered by insurance?+
Usually not. The fitting and follow-up are handled as a private optical service. We'll detail cost and follow-up plan in the initial assessment.

Preparing a public-service exam in Barcelona?

Ortho-K for public-exam candidates in Barcelona: meet uncorrected visual acuity requirements for Mossos, Bombers and Guardia Urbana.

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Important noticeThis page is informational and does not replace the official medical table of each exam call or the judgement of the panel's medical services. Ortho-K does not guarantee passing the medical exam: each case must be assessed individually.
Elena Sentís

Content reviewed by Elena Sentís, optometrist (registration no. 18568) and owner of Looptica Poblenou. Specialist in advanced contact-lens fitting, Ortho-K and myopia control.

Last reviewed: July 2026About Elena Sentís
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