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Is Laser Eye Surgery Good? Benefits, Limitations, & Suitability

Written By Eye Health Writer Jesse Chapman. Reviewed By Consultant Ophthalmologist Dr Fayyaz Musa

Published On: 22 July 202611 min read
Is laser eye surgery good at The Eye Doctor

Laser eye surgery is an excellent, safe, and highly successful method to restore healthy vision. Medical data proves that over 96 per cent of patients feel completely satisfied with their final results. Over two million UK patients have had this procedure since the year 2000. The procedure offers rapid vision improvement and eliminates the daily need to wear glasses or contact lenses for most tasks. If you are struggling with how to correct poor vision, this permanent procedure is the perfect place to start.

With the guidance of medical professionals, your eyes are carefully assessed to keep them safe in the long run, with no serious side effects. Comprehension of the exact benefits and risks will help you make a smart choice for your future eye health. Let's see how.

What is Laser Eye Surgery?

The human eye has a clear, round front layer, called the cornea. It helps bend the light to focus it on the back of the eye. If the cornea is irregularly shaped, the light fails to focus correctly. This error causes blurry vision.

Specialists use a precise medical laser to reshape the cornea so that light can focus again on the back of the eye. This procedure treats several common vision problems safely:

  • Short sight (myopia): Distant objects look blurry and out of focus.
  • Long sight (hyperopia): Close objects appear blurry and hard to read.
  • Astigmatism: The cornea has an uneven curve, which blurs all vision at any distance.

The Main Pros of Laser Eye Surgery

Here are a few effective benefits of professional laser eye surgery:

Fast and Noticeable Improvement

Results appear within a few hours of the operation for most patients. By the next day, your sight should be very sharp and clear. Medical data proves over 90 per cent of patients achieve 20/20 vision or better. More than 99 per cent achieve 20/40 vision. This level is the legal standard to drive a car safely without extra lenses.

No Glasses or Contact Lenses

The biggest benefit is pure freedom. You no longer need to reach for glasses when you wake up, nor spend time inserting contact lenses. You can play active sports, swim in pools, and travel without the hassle of extra eye products. Or enjoy the rain without water drops on your glasses.

Quick Recovery Time

The operation takes less than 15 minutes per eye, and you can go home the exact same day. Most people return to work and resume normal daily habits within 48 hours. The eye recovers rapidly with very little pain. You might feel a slight scratchy sensation, but this fades away quickly.

Long-Term Cost Savings

The initial price of the operation might be high, but it saves you a massive amount of money over your lifetime. Calculate the cash you spend on new glasses, prescription sunglasses, and contact lenses every single year. The cost of lens solutions and routine optician visits adds up to be cost-effective compared.

Mr. Fayyaz Musa — Consultant Ophthalmologist

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What Are The Cons And Potential Risks?

Even treatment may carry some risks; laser surgery is no exception. Here are a few of its limitations:

Temporary Dry Eyes

Dry eyes are a very common side effect. The operation reduces tear production temporarily. Your eyes might feel itchy or gritty for a few weeks or months. An eye doctor will prescribe artificial tears to keep your eyes moist and comfortable. Severe, permanent dry eyes are very rare.

Glare And Halos Around Lights

You might have trouble seeing at night. Some people see bright halos, starbursts, or harsh glare around street lights and car headlights. This side effect usually lasts a few days to a few weeks and resolves completely as the eye adapts to its new shape.

Flap Complications

In a LASIK operation, the surgeon cuts a tiny flap in the cornea. If you apply hard friction to your eyes, the flap can move out of place. This can happen even years later if a tree branch or a fingernail pokes your eye. If you hurt your eye, you must visit an eye specialist straightaway.

Over-correction Or Under-correction

Sometimes, the laser removes too much or too little tissue. If the laser removes too little tissue, your vision will not be perfectly clear, a condition known as 'under-correction'. Over-corrections might need a second, minor operation to perfect your sight within a year.

Who is a Good Candidate For Laser Eye Surgery?

Do you actually need laser eye surgery? These are the suitability criteria you must meet for the procedure:

Age and Stable Prescription

The patient must be at least 18 to 21 years old when the eyeball actually stops growing and changing shape. You must also have a stable eye prescription for at least one to two years before the operation. If the prescription changes often, the results of the operation will not last.

Good Overall Health

Certain medical conditions increase surgical risks. Autoimmune diseases, such as rheumatoid arthritis, reduce your ability to heal properly. Conditions like diabetes must be well-controlled. You must not be pregnant or nurse a baby. Hormones temporarily change the shape of your cornea, which makes the procedure inaccurate.

Sufficient Cornea Thickness

The operation removes tissue from the cornea. Therefore, the cornea must have a certain thickness to maintain its shape. The cornea is measured to ensure it is thick enough to handle the procedure safely. If your cornea is thick, you are an excellent candidate.

Who is Not Suitable For Treatment?

This is when the treatment is not a suitable option for your eye:

Thin Or Irregular Corneas

If you have a thin or irregularly shaped cornea, the operation is not safe. A rare condition called corneal ectasia can develop. This causes the cornea to bulge outward and distort vision.

Very High Prescriptions

The procedure has strict safety limits. For short sight, it is usually around minus 8 to minus 10 dioptres. For long sight, the limit is around +4 to +6 dioptres. If your prescription falls outside this safe range, the laser must remove too much tissue.

Severe Dry Eye Disease

If you already suffer from severe, constant dry eyes, the operation will make the problem worse. If your eyes are too dry, the doctor will suggest alternative treatments to protect your comfort.

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Mr. Fayyaz Musa — Consultant Ophthalmologist

Different Types of Laser Eye Surgery

LASIK Surgery

LASIK is the most common option worldwide, in which surgeons use a special tool to cut a small flap on the eye's surface. The laser then reshapes the tissue underneath, and the flap is folded back into place, healing naturally without stitches. Recovery is very fast with minimal discomfort.

LASEK Or PRK Surgery

This option is better for people with thin corneas or active lifestyles. The surgeon does not cut a deep flap. Instead, they gently remove the very thin top layer of the cornea. The laser reshapes the eye, and a protective contact lens covers the eye to keep it safe. The recovery process takes a bit longer than with LASIK.

SMILE Surgery

SMILE is a newer, highly advanced option. The surgeon uses a laser to cut a tiny disc of tissue inside the cornea. The surgeon then pulls this disc out through a very small hole. This perfectly changes the shape of the cornea. It has a lower risk of dry eyes and a very fast recovery time.

How Do You Prepare For The Procedure?

Preparation is vital for a safe operation. Follow these strict rules to ensure the best results:

  • Stop wearing contact lenses for several weeks before your test.
  • Contact lenses may distort the natural shape of your cornea.
  • Do not apply eye makeup, perfumes, or face creams on the day of your operation.
  • Clean your eyelashes daily to remove debris and lower infection risks.
  • Arrange for a friend to drive you home. You would struggle with blurriness initially.
  • Discuss all your current medicines with the expert practitioner.

What Happens After The Procedure?

The first 24 hours require absolute rest. Follow these simple steps to protect your eyes:

  • Your eyes might itch, burn, or produce extra tears. This is completely normal.
  • Do not apply friction to your eyes at all. Friction damages the delicate tissue.
  • Apply your prescribed anti-inflammatory drops exactly on schedule.
  • Use the provided plastic eye shield while you sleep to stop accidental bumps.
  • Avoid dusty places and do not apply eye makeup for a fortnight.
  • Stay out of hot tubs and saunas for four to six weeks.

Will You Ever Need Glasses Again After Laser Eye Surgery?

Laser eye surgery provides a permanent change to the cornea. However, it does not stop the natural effects of time. When people reach their 40s or 50s, the natural lens inside the eye becomes stiff. This natural condition is called presbyopia.

Presbyopia makes it difficult to focus on close objects. Even with a perfect laser operation in your 20s, you will likely need glasses for close work later in life. This is completely normal and happens to almost everyone. The surgery only corrects your current distance or near-vision problems. It cannot prevent future age-related changes.

Conclusion

In recent years, laser eye surgery has proved to be an incredibly safe and effective procedure for correcting vision in the body's most delicate organ. The beautiful part is that it gives patients a clear vision for years without the stress of constant lens maintenance. While minor risks like dry eyes exist, the massive benefits make it an excellent choice for suitable candidates.

Want a clear view of the world, too? Get the best laser eye surgery in the UK by the expert practitioners at The Eye Doctor. Take a suitability test to ensure your eyes remain perfectly healthy. Take the next step toward visual freedom today.

Frequently Asked Questions (FAQs)

Is laser eye surgery 100% safe?

No surgery has a zero risk rate. However, laser is one of the safest elective operations available, with a success rate of almost 99%.

Is it worth getting laser eye surgery?

Yes. Most patients feel it is highly worth the cost. It saves money over time and provides significant freedom from daily lens hassles.

What happens 10 years after LASIK?

The cornea retains its new shape permanently. However, natural age-related changes in the eyes can occur, and you might need glasses for close work.

Can I get LASIK if I have cataracts?

No. Doctors do not recommend this. A cataract clouds the natural lens, so experts will recommend a lens replacement instead.

What are the disadvantages of laser eye surgery?

The main disadvantages include temporary dry eyes, mild glare at night, and a small risk of undercorrection requiring a second operation.

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