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Most people with normal prescriptions can undergo laser eye surgery without a problem. But there are still some patients who may not be suitable for various reasons, which we discuss below. The first step to check if laser eye surgery will work for you is always to have a consultation with a specialist, who can assess your own unique health and circumstances.

Here’s a broad outline of the criteria that clinics will usually ask for when assessing patients for laser eye surgery. Every case is individual, however, and many of these factors can be managed, so it’s always worth having a consultation to discuss your own treatment and whether laser eye surgery will be suitable for you.

Criteria for laser eye surgery suitability

  • Are you over 18? Surgery isn’t advisable unless you are. That’s not just down to consent; young eyes are often still changing, so it’s wise to wait until your eyesight has settled down before committing to surgery. There is no upper age limit for laser eye surgery, however.
  • Pre-existing conditions. There’s a higher risk of infection with some eye conditions like blepharitis. Other medical conditions like diabetes and epilepsy may mean you are unsuitable for for laser eye surgery procedures like LASIK if they are not under control. Pregnancy can also affect eyesight, so women are advised to wait until after they have given birth before presenting having laser eye surgery.
  • Your prescription. Laser eye surgery is most simple for prescriptions within a range of -10D and +7.25D and should ideally have remained stable within the last two years. That’s because, within this range, the corneas are thick enough to shape with the laser. Beyond this, the procedure can be a little more tricky. However, even if your high prescription affects your suitability for laser eye surgery, other options may be open to you. Bioptics is an effective treatment path that may be worth considering.

Check if laser eye surgery will work for you or if you should explore other vision correction options with our Vision Correction Calculator. 

Contraindications making you unsuitable for laser eye surgery

A contraindication is a factor in your own particular medical circumstances that makes you unsuitable for surgery. That might be because for you, laser eye surgery is unlikely to be particularly effective, or because the risks are too high to carry out surgery safely. Some of the symptoms and conditions that may that may mean you’re not suitable for laser eye surgery include:

  • Keratoconus or thin corneas
  • Blindness or partial sightedness in either eye
  • Uncontrolled glaucoma
  • Uncontrolled diabetes
  • Uncontrolled epilepsy
  • Uncontrolled rheumatoid arthritis
  • Uncontrolled Crohn’s disease

ali mearza chiswick

It’s important to book an appointment with your specialist to discuss your suitability for laser eye surgery and to discuss the options for alternative treatments. With the latest modern advances in eye surgery, it may be possible to treat patients who were previously told they were unsuitable for laser eye surgery or there may be a new alternative that you are eligible for.

Mr Ali Mearza

Director and founding partner of OCL Vision
Meet Ali

If you are not sure whether you’re suitable for laser eye surgery procedures like LASIK, we can help you. Make an enquiry or call on 0203 369 2020

Make an enquiry

How much does laser eye surgery cost?

The costs below are for both eyes and include an initial consultation and follow-up appointments.


From £3950, or £148 over 24 months

LASEK (advanced surface ablation)

From £3950, or £148 over 24 months


From £4300, or £162 over 24 months

LASER Blended Vision

£4950, or £186 over 24 months

Finance Options/Interest-Free Credit

We also offer 0% interest finance options making it easier to spread the cost of surgery over up to 24 months.

A minimum 10% deposit is required and the balance is split over your chosen monthly period of either 6, 12, or 24 months at a rate of 0% APR.

Get in touch to find out more about our flexible pricing options and how we can make it work for you.

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What are my treatment options?

Try our Vision Correction Calculator.
How old are you?
Less than 19
Older than 60
What is your prescription?

Enter your right and left eye details below to the nearest value:

Left Eye



Right Eye



Thank you. Based on your responses:

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Last updated on November 23rd, 2023 by Mr Mark Wilkins