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Artificial Lens Implant

Find out about the intraocular lens options available and how they are fitted

An intraocular lens (IOL) is a tiny, artificial lens that is implanted into the eye, usually during cataract surgery or refractive lens surgery.  

There are several different kinds of intraocular lens implants available, which can help to correct different eye conditions.   

We can arrange a private clinical appointment for you to visit a leading Consultant ophthalmologist who specialises in intraocular lens implants. They can assess your condition and advise you about the specific artificial lens that would be most appropriate for you.  

The best type of lens surgery for you will depend on various factors such as your sight prescription, level of astigmatism, your age and if you have the beginnings of cataracts.

There are 2 main types of lens surgery: phakic intraocular lens surgery and refractive lens exchange.

Phakic intraocular lens implantation (PIOL) puts artificial lenses into your eyes without removing the lens you already have. Your surgeon will make a small cut in your eye and fit the new lens in.

Refractive lens exchange (RLE) is very similar, but before the new lens is placed into your eye, the existing one is removed. Stitches are not required in either type of surgery.

Monofocal lens

A monofocal lens is the most common type of artificial lens implant. It has one focusing point that can be set to correct your vision for distance – intermediate or near distance– but not all at the same time. Most people have monofocal lenses so that they can see clearly at a distance, and they use reading glasses for close work.

Multifocal lens

Multifocal lenses are designed to help you see near, far and in between, without glasses or contact lenses. These types of lens implants reduce your dependence on glasses by giving you clear vision for more than one set distance.

A multifocal IOL has different zones set at different powers. These IOLs provide both distance and near focus at the same time. They are designed so that your brain learns to select the right focus automatically.

Toric IOLs

Toric lens implants can be used to correct astigmatism, depending on how your cornea is shaped. Astigmatism is caused by an uneven curve in your cornea or lens. The toric lens is designed to correct this error.


Sometimes patients undergoing lens implant surgery or cataract surgery will receive a monofocal lens with a different power in each eye so that they don’t have to use glasses for most daily activities. The dominant eye is generally corrected for distance, and the other eye is corrected for near sight. Many people successfully use monovision with contact lenses. Successful monovision requires surgery to both eyes.

Your vision might be slightly disturbed for a while after the surgery, but it should settle down after a few weeks. You may also experience some discomfort in your eyes, and some red marks on the white of your eyes, but again these will resolve within a few weeks.

Our 500 trusted eyecare experts offer personalised care at over 40 BMI Healthcare centres across the UK. Our experts in affordable eye care offer fast access to treatment in a safe and comfortable environment. Your bespoke treatment will provide the best possible outcome, along with excellent value for money, to help improve your quality of life.

What you pay will depend on the exact treatment you need. Your final price will be confirmed in writing following your consultation.

Specialists Offering Artificial Lens Implant

Mr Nitin Modi

Consultant Orthopaedic Surgeon

MBBS, MS Orthopaedics FRCS (T&O), MS Orthopaedics, MRCS, FCPS Orthopaedics, Diploma Orthopaedics

BMI St Edmunds Hospital

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Mr Richard John Stirling

Consultant Ophthalmologist

MB, ChB, BSc, FRCS(Ed), FRCOphth

BMI Woodlands Hospital

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Dr Vikas Chadha

Consultant Ophthalmologist

MBBS, MS, DNB (Ophthalmology), FRCS (Glasgow), FRCOphth

BMI Ross Hall Hospital

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Mr Anil Aralikatti

Consultant Ophthalmic Surgeon

MBBS, MS (Ophth), MRCOphth, FRCS, FRCOphth

BMI The Priory Hospital

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