LASIK Eye Surgery

Overview

LASIK (laser-assisted in situ keratomileusis) is a laser eye procedure that corrects common refractive errors — short-sightedness (myopia), long-sightedness (hyperopia), and astigmatism — by gently reshaping the cornea, the clear front window of the eye. By adjusting the curvature of the cornea, LASIK changes how light is focused onto the retina, aiming to give clearer vision without glasses or contact lenses.

The distinctive feature of LASIK is that a very thin flap is created in the surface of the cornea and lifted so the laser can reshape the tissue underneath, after which the flap is laid back into place. This is what gives LASIK its typically fast, comfortable recovery compared with surface-based laser procedures.

LASIK is elective surgery on a healthy eye, so careful patient selection and honest expectations matter. This page is an educational overview only. It is not medical advice, and no visual outcome can be guaranteed.

Who May Need This

LASIK may suit adults who want to reduce their dependence on glasses or contact lenses and who have a stable prescription, healthy eyes, and corneas of adequate thickness and regular shape. It is often chosen by people whose lifestyle, work or sport makes glasses or lenses inconvenient.

It is not suitable for everyone. People with thin or irregular corneas, significant dry eye, certain eye diseases such as keratoconus, unstable prescriptions, or some other health conditions may be better served by a different procedure or by continuing with glasses. Suitability can only be determined by a detailed refractive assessment.

When It May Be Recommended

LASIK is usually considered once vision has been stable for a period, generally after the early twenties, and when a full assessment confirms the corneas are healthy and thick enough. It is an elective choice rather than a medical necessity, so the decision rests on your preferences alongside the clinical findings.

A surgeon may recommend an alternative laser procedure if your corneas are thin or your prescription is at the edge of what LASIK can safely correct. The aim is to match the procedure to your eyes so that the benefits outweigh the risks in your individual case.

Diagnosis and Evaluation

A thorough refractive assessment is essential before LASIK. This includes measuring your prescription, mapping the shape of the cornea (corneal topography) and its thickness (pachymetry), assessing your tear film for dry eye, checking pupil size, and examining the health of the whole eye. You will usually be asked to stop wearing contact lenses for a period beforehand so the corneal shape is accurate.

These measurements confirm whether LASIK is safe and suitable, or whether another procedure would be better, and they guide the precise laser treatment plan. An honest discussion of your expectations is part of this evaluation.

Treatment Options

LASIK is one of several laser vision correction options. PRK (and related surface procedures) reshapes the cornea without creating a flap, which can suit thinner corneas but involves a longer, more uncomfortable recovery. SMILE removes a small disc of tissue through a tiny incision without a full flap.

Within LASIK, the flap is usually created with a femtosecond laser ("bladeless" LASIK), and the treatment can be guided by detailed maps of the eye (wavefront or topography-guided) for a customised correction. For people who are not suitable for laser correction, implantable contact lenses or lens-based surgery may be alternatives. Your surgeon will recommend the best fit for your eyes.

How It Is Performed

LASIK is a quick day-case procedure done under numbing eye drops, usually taking only a few minutes per eye. A device holds the eyelids open, and the surgeon creates a thin corneal flap, most often with a femtosecond laser. The flap is lifted, and an excimer laser reshapes the corneal tissue according to your customised plan, with the eye tracked precisely throughout.

The flap is then repositioned, where it adheres without stitches. Both eyes are often treated in the same session. You rest briefly, your eyes are checked, and you go home the same day with protective shields and drops. Your vision is typically blurry at first and improves markedly by the next day.

Preparation

Preparation includes the detailed eye assessment, stopping contact lens wear for the advised period so the corneal measurements are accurate, and arranging for someone to take you home afterwards. You should not wear eye make-up on the day and will be told which drops to use before and after.

If you are travelling for treatment, plan for the in-country stay needed for the assessment, the procedure, and at least the first follow-up check the next day. Bring your current prescription and any records of previous eye problems, and discuss realistic expectations before committing.

Benefits and Expected Goals

The goal of LASIK is to reduce dependence on glasses and contact lenses by correcting your refractive error, with the convenience of fast recovery. Many people achieve good unaided vision for everyday activities, and appreciate the freedom from lenses for sport, work or travel.

Results vary between individuals, and LASIK cannot guarantee perfect vision or that glasses will never be needed. Age-related reading difficulty (presbyopia) still develops later in life, so reading glasses may eventually be required. Your surgeon can explain the realistic outcome for your prescription and eyes.

Risks and Possible Complications

LASIK is generally safe, but as elective surgery it carries risks and possible side effects that you should weigh carefully. Most side effects are temporary, but a minority of people experience longer-lasting symptoms.

• Dry eyes, often temporary but occasionally persistent
• Glare, halos or starbursts around lights, especially at night
• Under- or over-correction, sometimes needing an enhancement procedure
• Flap-related problems, including wrinkling or, rarely, infection under the flap
• Fluctuating vision during healing
• Very rarely, worsening of vision or corneal weakening (ectasia)

A careful pre-operative assessment reduces these risks, and your surgeon should discuss them honestly. Report increasing pain or worsening vision after surgery promptly.

Recovery, Follow-up & Aftercare

Recovery from LASIK is usually rapid. The eyes may feel gritty, watery and light-sensitive for several hours, and most people notice clearer vision by the next day, with continued fine-tuning over the following weeks. You will use lubricating and antibiotic or anti-inflammatory drops and wear shields at night at first.

You will generally be advised to avoid rubbing your eyes, swimming, dusty environments and eye make-up for a period, and to protect the eyes from injury while the flap heals. Night-time glare and dryness often settle over weeks. If you have travelled for treatment, attend the early check-up and arrange follow-up with an eye specialist at home.

Medical Tourism Planning

If you are considering LASIK abroad, choose a JCI- or ISO-accredited hospital or refractive centre with modern femtosecond and excimer laser technology and experienced refractive surgeons. Verify the surgeon experience and the thoroughness of the pre-operative screening, and request a written treatment plan and cost estimate before you travel.

Plan for the in-country stay needed for assessment, surgery and the first follow-up, and confirm what drops you will need afterwards. Ask how any enhancement or complication would be handled once you are home, and arrange follow-up with an eye specialist locally. Consider medical travel insurance.

Estimated Cost Factors

The cost of LASIK depends on the country and clinic, the laser technology used, whether the treatment is standard or fully customised (wavefront or topography-guided), the strength of your prescription, and whether follow-up and any enhancement are included. Bladeless, customised treatments generally cost more.

Many international destinations offer LASIK at a fraction of typical US prices, but figures vary widely by clinic and technology. Prices quoted online are only estimates — always request a personalized written quote that states exactly what is included, such as follow-up and enhancements, before deciding.

Choosing a Hospital or Specialist

Look for an accredited hospital or dedicated refractive centre with current laser platforms and a high volume of laser vision correction. Confirm the surgeon board certification and refractive experience, and that a thorough screening is done to rule out unsuitable candidates rather than treating everyone.

Ask about international patient services, interpreter support, and how enhancements or complications would be handled after you return home. A clinic that screens carefully, sets honest expectations, and provides transparent written costs is a good sign of quality.

Alternatives

Alternatives to LASIK include other laser procedures such as PRK or SMILE, which may suit different corneas or prescriptions, and implantable contact lenses or lens-based surgery for people who are not laser candidates. For age-related reading difficulty, lens-based options may be more appropriate.

Of course, continuing with glasses or contact lenses remains a safe, non-surgical choice. Each option differs in suitability, recovery and risk. Discuss all of them with a refractive surgeon so the decision fits your eyes and your goals.

Questions to Ask Your Doctor

• Am I a good candidate for LASIK, or would PRK, SMILE, or a lens-based option suit me better?
• What visual result can I realistically expect for my prescription?
• How likely am I to have dry eyes or night-time glare, and will they last?
• Are enhancements included if I am under- or over-corrected?
• What are the specific risks in my case, and how are complications managed?
• How long should I stay in-country, and how will follow-up work at home?
• What exactly is included in the written cost estimate?