What are cataracts?

Cataracts are a very common eye condition that usually develop as you age. They develop when the eye’s clear lens forms cloudy or misty patches. Although cataracts won’t usually cause any damage, they often impact your vision, making it seem like you’re looking through a frosty window. So treatment is often recommended to help restore your vision and get you back to doing what you love.

Learn more about cataracts with Nigel Kirkpatrick, consultant ophthalmologist and partner at Newmedica Gloucester.

What are the symptoms of cataracts?

Cataracts can form in one or both eyes and typically develop slowly over several years, so you might not notice any symptoms at first. But usually, you’ll experience blurred or cloudy vision, or have patches where your vision isn’t as clear. It’s a bit like looking through a frosted or foggy window. Cataracts can also cause glare or haloes around lights, which means you might struggle to see your surroundings clearly.

What causes cataracts?

The lens in your eye is usually clear, so that it can focus the light coming into your eye onto your retina, where the images we see get sent on to the brain. Over time, this clear lens naturally starts to become cloudy or develop misty patches, which in turn makes your vision blurrier.

How is it diagnosed?

Your optometrist will usually spot signs of cataracts during your regular eye exam. Then they’ll refer you on to specialists like us to carry out some more tests on your vision and sort out a treatment plan for you.

How do I get referred?

Find out how
Examples of normal vision, moderate cataracts and severe cataracts

What is cataract surgery?

Cataract surgery is a common procedure that involves removing the cloudy lens (cataract) and replacing it with a new, artificial lens (known as an intraocular lens) to restore your clear vision.

Who might need cataract surgery?

Cataract surgery is recommended when it starts getting difficult to see and carry out your normal day-to-day activities. Surgery is the only treatment available for cataracts at the moment. Without surgery it’s likely that it will gradually get worse over time.

What are the benefits of cataract surgery?

The most obvious benefit is the improvement in your vision. Surgery restores clarity and stops your vision from changing any further. You might also notice an improvement in sharpness, brightness and your perception of colour.

Cataract surgery also offers a chance to correct your glasses prescription, so you can reduce your dependence on glasses. Sometimes you might not need to wear your full-time glasses at all after surgery.

What happens during cataract surgery?


Before you have your surgery, we’ll test your current vision and carry out what’s called a biometry test that takes measurements of your eye so your consultant can make sure that your new replacement lens is the right one for you. Our clinical assistants will go through some relevant health checks and talk you through the procedure. Your consultant will then check your eyes to make sure there’s nothing that could affect your surgery, discuss your available lens options, and answer any questions you might have.

If you’re having NHS cataract treatment with us, you’ll be offered a monofocal lens which is usually set for distance vision. But you can choose to have clearer reading vision instead if you’d prefer. If you have astigmatism, where the cornea at the front of the eye is shaped more like a rugby ball than a football, then you might still need to wear glasses after surgery. We’ll talk through your options with you during your appointment.

If you’re having private cataract surgery, we have a range of lens choices that can help with astigmatism (toric lens) or reduce your dependency on glasses even more (multifocal lens). We’ll go through all the different lens choices together, so you can decide what’s right for you.


Most cataract operations are carried out under a local anaesthetic, either by eye drops or anaesthetic around the eye. So don’t worry, there won’t be any needles. You’ll be awake and might be able to see some movement around your eye, but you won’t be able to feel a thing. We know this can be a bit unnerving, but our theatre teams will be there to make sure you’re feeling completely comfortable the whole way through. They’ll also talk you through everything they’re doing during the procedure.

The surgery normally takes around 10-20 minutes. Your consultant will make a tiny incision in the eye to remove your cloudy lens and replace it with the artificial lens.

Post operation

After surgery, we might recommend popping a small plastic shield over your eye to protect it from any accidental damage. We’ll do this for you after surgery if needed and you can reapply once you get home if you prefer.

You’ll need to use eye drops for about three weeks after your surgery. These are prescribed by your consultant, and we’ll make sure you know how and when to use them before you go home.

You can go home on the same day, but you won’t be able to drive straight away. We’d recommend that you have someone you can contact for about 24 hours after your procedure, just in case you need a bit of help when you get home.

We’ll give you a call the next day to make sure you’re okay, that your vision is returning and you’re happy with how to use your eye drops. We’ll also arrange the necessary follow-up appointments with your consultant or preferred optician to make sure your recovery is on track and your vision is clear.

How long does it take to recover from cataract surgery?

You’ll usually be up and about straight away, but it’s important to take things easy. You can get up, prepare simple meals, go for a walk or watch TV – but it’s best not to plan to be too busy just in case your eye feels a bit uncomfortable.

It’s normal to experience some itchiness, sticky eyelids, or fluid discharge from the treated eye in the first few days, so don’t worry. If you have any mild discomfort, this can be managed with paracetamol as advised.

After a few days even mild discomfort should disappear, and in most cases, healing will take about two to four weeks.

During recovery you can wear a plastic shield at night to protect your eye while you’re sleeping. Your consultant will also give you some eye drops to use for about three weeks to reduce inflammation and allow healing.

What are the possible complications?

Although the vast majority of patients won’t experience any complications, as with all surgery there are some risks of complications. Our team will discuss these with you in detail at your appointment and will make sure you’re happy to go ahead with treatment. We take every step to reduce our complication rates and we have excellent results that we publish on the National Ophthalmology Database (NOD).

Some people might develop a common complication after surgery where the membrane behind the artificial lens goes cloudy, which is known as posterior capsular opacification (PCO). This is easily treated with a procedure called YAG laser capsulotomy.

How do I get referred for NHS cataract surgery?

Your optician or GP will discuss the various treatment options available to you and where you can choose to have your treatment. You’ll be able to take the time to decide where you’d like to be treated, and your optician or GP will make the arrangements for your referral to Newmedica.

What’s the difference between NHS and private cataract surgery?

There are a few differences when it comes to NHS and private cataract surgery.

  1. When you can have surgery
    Sometimes you might have to wait a little longer to receive cataract surgery on the NHS. This is because the NHS have certain thresholds, usually linked to impact on vision, to qualify for NHS cataract treatment. If you decide to go private for your cataract surgery, you can have the procedure when you feel that your vision is affecting your lifestyle, so you don’t necessarily need to meet the local NHS guidelines.

  2. Your lens options
    During cataract surgery, your cloudy lens is replaced with a lens implant. The type of lens you choose will determine how well you see without glasses after your cataract surgery. With NHS cataract surgery, the standard replacement used is called a monofocal lens, which improves your vision for a specific distance (like up close or far away).

With private surgery you can still have a monofocal lens replacement, but you also have the option to choose a different type of lens which could reduce your dependency on glasses after your surgery (at an additional cost). This includes:

  • A multifocal option – for good distance, intermediate and up-close vision.

  • An extended focus option – which provides a continuous focus over a range of distances.

If you have astigmatism (where the cornea at the front of the eye is shaped more like a rugby ball than a football), you can get the right correction incorporated into any of these specialist lenses. This type of corrective lens is known as toric, which you might have heard of before if you wear contact lenses.

Your consultant will talk through all your options for you to think about before having surgery, so you can decide what’s right for you and your lifestyle.

How much does the treatment cost?

If the Newmedica clinic that you choose is able to offer the treatment through the NHS, then all of your treatment costs with Newmedica are fully covered, with no additional cost to you.

Private cataract surgery starts from £2,295 per eye for a monofocal lens replacement. There are a range of costs for the specialist lens types available and we’ll explain this clearly to you. We offer a single fixed price so that there aren’t any hidden fees for consultations or diagnostic tests to surprise you – so that means you pay one price for surgery, your replacement lens, all pre- and post-operative appointments, and all medication.

Do I need a referral for private cataract surgery?

If you’re a private patient, you can just get in touch with us directly. But if you’re using private medical insurance, you might need some more information to make your claim. You can find all the details on our private referral page.

What’s included in the private treatment package?

Our cataract package includes:

  • Free consultation

  • A set of comprehensive diagnostic tests – including corneal topography to help with lens choices

  • Surgery at the earliest opportunity – often within two weeks

  • The latest lens technology and choice of treatment options

  • Tailored aftercare – we’ll see you until you’re completely happy

  • From £2,295 per eye

Find your nearest clinic


Unit 1B and 1C Midland Place, Barlborough Links, Chesterfield, S43 4FR

NHS Private

Aqueous One, Aston Cross Business Village, Rocky Lane, Birmingham, B6 5RQ

NHS Private

Riverside Surgery, Barnard Avenue, Brigg, DN20 8AS

NHS Private
Bristol - Aztec West

Building 720, Waterside Drive, Aztec West, Almondsbury, Bristol, BS32 4UD

NHS Private
Bristol - Litfield House

Litfield House Medical Centre, 1 Litfield Place, Clifton Down, Bristol, BS8 3LS

NHS Private
Bury St Edmunds

4 Lawson Place, Bury St Edmunds, Suffolk, IP32 7EW

NHS Private (unavailable)

Park Place Health Centre, Park Place, Darlington DL1 5LW

NHS Private (unavailable)

The Medical Eye Clinic, Sigford Road, Matford Park, Exeter, EX2 8NL

NHS Private (unavailable)
Gloucester Aspen

Aspen Medical Centre, Horton Road, Gloucester, GL1 3PX

NHS Private
Gloucester Brighouse

19D Brighouse Court, Barnwood, Gloucester, GL4 3RT

NHS Private

Cromwell Primary Care Centre, 1st Floor, Cromwell Road, Grimsby, DN31 2BH

NHS Private

St Andrew's House, 4400 Parkway, Solent Business Park, Whiteley, PO15 7FJ

NHS Private

London House, Hadleigh Road, Ipswich, IP2 0EE

NHS Private

Mendip Vale Medical Centre, Pudding Pie Lane, Langford, BS40 5EL

NHS Private

St Martins House, 210 Chapeltown Road, Leeds, LS7 4HZ

NHS Private

Grove Park, 1 Barton Close, Leicester, LE19 1SJ

NHS Private

North Hykeham Health Centre, Moor Lane, North Hykeham, Lincoln, LN6 9BA

NHS Private

29-30 Market Place, North Ormesby, Middlesbrough, TS3 6HR

NHS Private

Hadrian House, Balliol Business Park, Newcastle Upon Tyne, NE12 8EW

NHS Private

Unit 2 Westbury Court, Anglia Way, Moulton Park, Northampton, NN3 6JA

NHS Private

Lakeside 200, Old Chapel Way, Broadland Business Park, Norwich, NR7 0WG

NHS Private

Tottle Road, Riverside Business Park, Nottingham, NG2 1RT

NHS Private

Avalon House, Marcham Road, Abingdon, OX14 1TZ

NHS Private

Forder House, 20 William Prance Road, Derriford, Plymouth, PL6 5WR

NHS Private

Unit 2, Anchorage Ave., Shrewsbury Bus. Park, Shrewsbury, SY2 6FG

NHS Private

Buckland House, Langley Business Park, 10 Waterside Drive, Langley, Slough, Berkshire, SL3 6EZ

NHS Private

Swindon NHS Health Centre, 1 Islington Street, Swindon, SN1 2DQv

NHS Private

Queens Road Consulting Rooms, 92 Queens Road, Donnington, Telford, TF2 8BZ

NHS Private

106 Barnsley Road, Wakefield, WF1 5NX

NHS Private

Unit 5, Berkeley Business Park, Wainwright Road, Worcester, WR4 9FA

NHS Private

The Dukeries, 31-33 Retford Road, Worksop, S80 2PU

NHS Private (unavailable)

Dee Valley Medical Practice, 15 High Street, Overton-on-Dee, Wrexham, LL13 0ED

NHS (unavailable) Private

Getting referred to Newmedica

If you think you have an eye condition, you should see your optician or GP for a detailed assessment. They’ll go through all the options available and tell you where you can have your treatment.

The referral process will differ slightly depending on whether you want to be an NHS or private patient. You’ll find all the information you need on our NHS and private patient pages.

Are you a health care professional?
Find out how to refer a patient.

NHS patients

Learn more about our NHS services
and how you can be referred.

Read more

Private patients

Find details about our private
options and how to get started.

Read more

Self-referring? Call 0800 4096 792