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Eye surgery complications: Are there any risks with Clarivu permanent lens replacement?

Patients undergoing Clarivu should be aware that no surgical procedure is totally risk free. Your Consultant Ophthalmic Surgeon will discuss any specific risks that you need to be aware of prior to your Clarivu procedure and give you the chance to ask any questions at your consultation.


Vision after surgery is not as expected

In some cases there may be some residual short or long-sightedness, or astigmatism after surgery. Therefore spectacles may be required for specific tasks such as reading small print or driving. In some cases, a laser “top- up” procedure can be carried out to improve the vision further.

Glare & haloes

All patients should be aware that they may experience haloes and glare after treatment. These visual side-effects reduce significantly in the first month and continue to resolve over a 3 month period. Although IOLs may cause some glare, most people adapt over time and do not suffer any long term problems.

Red, sore or irritable eye

Some patients may feel some slight tenderness to the eye area after surgery which will settle down after a few days. The eye can sometimes appear very red due to a blood vessel being disturbed during surgery. This redness dissipates over a few weeks and it does not affect vision or comfort. A gritty sensation can also be felt sometimes, which may be alleviated by dry eye drops. This can take up to 6 to 8 weeks to settle down.

Posterior Capsule Opacification

Over time, in the months and years following surgery, the lens capsule which remains in the eye after surgery to support the IOL can become cloudy. This is treated with the YAG laser which effectively clears away the cloudy parts of the capsule.

After the YAG laser treatment it is common to experience a few or many floaters when looking straight ahead, especially in bright light. These floaters gradually begin to disappear and settle down in the jelly of the eye without causing any problems.

Rare but possible complications


In less than 0.05% of cases, severe infection may occur despite the use of antibiotic eye drops. Any sudden pain or loss in vision must be immediately reported so that Optegra can arrange for swift medical treatment.

Retinal detachment

The light sensitive membrane at the back of the eye may become detached following surgery. This can be corrected by surgery but there is a risk that the quality of vision may not be the same as before detachment.

Cystoid Macula Oedema

The macula is a part of the retina that provides detailed central vision. Occasionally it can swell after surgery and cause a decrease in vision. Mild cases often resolve with no medical intervention but when detected, it is treated with eye drops. The swelling nearly always responds to treatment.

To find out more about complications and risks associated with permanent lens replacement get in touch today.

Make your own informed decision

Clarivu has changed the lives of so many people – but don’t just take our word for it! Watch patient movies or read their stories for yourself.

Book your free consultation with an expert Optegra eye surgeon or call us on 0808 250 7795.

Our open evenings

At an Optegra open evening you can meet the consultant and the hospital team, have all your questions answered and take a guided tour of our five star hospital facilities. Select a hospital below to read more & book

Optegra Birmingham, London, Manchester, Solent, Surrey and Yorkshire eye hospitals.

Patient reviews

Read in our patient’s own words how making the decision to have eye surgery at Optegra has had a positive effect on their lives.

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19. Dec

I felt beautifully cared for and v...

You can tell immediately that everyone at Optegra truly cares about your welfare and comfort. I'm thrilled wit...

Mrs Virginia Wilson

Optegra partnerships

Optegra's partnership vision is to bring together allied professionals – both optometrists and GPs – in continuing education and training in the latest ophthalmic procedures and treatments. By involving our partners in the care pathway...

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Our consultants

Optegra’s Ophthalmic Consultants are among the best in the industry. Each is renowned in their field and committed to providing our patients with first-class eye treatment. They are all NHS trained & fellows of the Royal College of Ophthalmologists.

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Our hospitals

From your very first visit you will understand what makes us so different. Our network of eye hospitals have been specially designed to provide a calm environment in which you will feel relaxed and well cared for.

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Open evenings

At an Optegra open evening you can meet the consultant and the hospital team, have all your questions answered and take a guided tour of our five star hospital facilities.

Click here to find an open evening at a hospital near you ›