Cataract surgery is the most common surgical procedure in the UK, with over 325,000 procedures performed annually. The success rates are remarkable – 98% of surgeries have no complications, and more than 90% of patients see significant improvements in their vision.
Making the decision to have surgery can feel overwhelming. This piece offers a detailed look at cataract surgery’s benefits, possible risks after the procedure in the UK, and key factors to think over if you plan to treat both cataracts simultaneously. We’ll guide you through the essential information – from vision improvements that can change your life to the rare complications – to help you make the right choice for your eye health.
Understanding Cataracts and When Surgery Is Needed
Your eye’s clear lens gets cloudy when cataracts develop. It’s like looking through a dirty window. The lens sits behind your pupil and iris and works just like a camera lens. It focuses light onto the retina to create clear images. Let’s get into what causes this common eye condition, how it progresses, and how it affects daily life.
What causes cataracts and how they progress?
The main reason cataracts form is age-related protein breakdown in your eye’s lens. Proteins in the lens start to break down and clump together around age 40. These clumps create cloudy patches. This usually happens slowly over time, and the speed varies a lot from one person to another.
Cataracts move through four distinct stages:
- Early cataracts: Small cloudy areas show up in the lens but don’t affect vision much. You might see things a bit blurry or become more sensitive to light.
- Immature cataracts: The cloudiness becomes more obvious as proteins keep grouping together. Your vision gets more blurry, colours look less bright, and you might have trouble seeing in dim light.
- Mature cataracts: The lens becomes completely cloudy at this point, and your vision takes a big hit. Daily tasks become really challenging.
- Hyper mature cataracts: This most advanced stage makes the lens very dense. The lens might shrink and harden, which can lead to problems like inflammation and higher eye pressure.
Age is the biggest risk factor, but cataracts can also develop from eye injuries, certain medicines (especially long-term steroid use), smoking, drinking too much alcohol, and health issues like diabetes.
The right time to surgery
Keep in mind that just having a cataract doesn’t mean you need surgery right away. Surgery makes sense when cataracts really start to mess with your daily life and how well you can function.
Your eye doctor might suggest surgery if:
- Reading, driving, or watching TV becomes difficult
- Vision problems affect how independent you can be
- They need to keep an eye on other conditions like diabetic retinopathy
Half of all people who make it to their 90s will need cataract surgery at some point. In spite of that, you usually don’t need to rush into surgery. Most cataracts develop slowly, so you have time to think about your options.
How do cataracts affect daily life?
Cataracts affect your daily routine more and more as they get worse. Here’s what happens:
Driving becomes really tricky, especially at night when headlights and streetlights create more glare. On top of that, reading gets harder because text looks blurry. You might need stronger glasses and brighter lights.
Colours start to fade or look yellowish, making bright scenes appear dull. This colour change, plus things being less clear, can really affect hobbies like painting, woodworking, or any task that needs good eyesight.
Simple tasks like cooking and cleaning take longer and become frustrating. You might miss ingredients or have trouble keeping up with regular house chores. So many people with advanced cataracts start losing their independence, which can be really tough.
These effects help explain why cataract surgery, even though it’s optional, ranks among the UK’s most common procedures. It offers a way to see clearly and regain independence.
Preparing for Cataract Surgery: What to Expect

Image Source: Healthline
Getting ready for eye surgery brings up natural questions and worries. Cataracts affect millions of people in the UK, and the path to better vision is tried and tested. Let’s walk through what you need to do before your surgery.
Understanding your lens options
Picking the right artificial lens (intraocular lens or IOL) stands as your most crucial decision. Your eye doctor will measure your eye a few weeks before surgery to find your perfect fit.
Here are your main lens choices:
- Monofocal lenses – These basic lenses fix your vision at one distance (usually far away). You’ll likely need reading glasses for close-up tasks. NHS patients usually get these.
- Multifocal lenses – These premium lenses work like bifocals or trifocals. They help you see both near and far.
- Toric lenses – These special lenses fix astigmatism.
Mental and emotional preparation
Feeling nervous about eye surgery is normal. It helps to know that 98% of these surgeries have no complications. Nine out of ten patients see much better afterward.
Here’s how to get your mind ready:
- Educate yourself – Learning about what happens during surgery helps calm your nerves.
- Communicate concerns – Talk to your surgeon about anything that worries you.
- Practice relaxation – Try deep breathing, muscle relaxation, or meditation to stay calm.
- Ensure physical readiness – Sleep well the night before and stick to all pre-surgery instructions, including medicine rules.
Your pre-surgery check-up includes measuring your eyes, checking blood pressure, testing vision, and maybe heart tracings or blood tests if needed. Eye drops will make your pupils bigger, which blurs vision for 6-8 hours. Make sure someone can drive you home.
This knowledge will boost your confidence about cataract surgery. You’ll know what good things to expect and understand any risks that might come up.
The Surgery Itself: Step-by-Step Overview
Cataract surgery stands out as one of the quickest and most successful medical procedures today. Let’s get into what actually happens during this straightforward operation that can transform your vision.
How the procedure works?
Doctors most commonly use a technique called phacoemulsification to remove cataracts. The procedure works like this:
- Your surgeon makes a tiny incision in the cornea (the clear front layer of your eye)
- A small probe using ultrasound waves breaks up the cloudy lens into tiny fragments
- These fragments are gently suctioned out
- An artificial lens (IOL) is inserted into the empty lens capsule
- The incision is so small it heals naturally without stitches
This whole ordeal usually takes between 15-30 minutes per eye, which makes it remarkably quick for such a transformative procedure. The surgery keeps your natural lens’s outer housing (called the lens capsule) intact to support the new artificial lens.
What happens on surgery day?
You’ll spend about 2-3 hours at the surgical facility on surgery day, though the actual procedure doesn’t take long. Here’s what happens when you arrive:
- You’ll get eye drops to dilate your pupil
- The surgical team cleans the area around your eye
- You receive local anaesthesia (usually eye drops, an injection, or both)
- A sterile sheet covers your face, leaving only the eye being operated on visible
You stay awake but comfortable during the procedure. Light changes and movement might be noticeable, but you won’t see the surgery or feel pain. After surgery, you rest in recovery for about 30 minutes before getting your post-operative instructions. Your vision will be blurry at first, so someone needs to drive you home.
Can you have both cataracts done at the same time?
Most doctors treat cataracts in each eye separately, usually 6-12 weeks apart. This approach lets your first eye heal and vision stabilise before the second surgery. It also gives doctors a chance to evaluate the first surgery’s outcome, which might affect decisions about the second procedure.
Immediate sequential bilateral cataract surgery (ISBCS)—treating both eyes during the same session—is becoming accessible to more people in certain cases. This works best if you need general anaesthesia, have mobility issues, or live with cognitive conditions like Alzheimer’s. ISBCS means fewer hospital visits and faster visual recovery for these patients.
Benefits of Cataract Surgery You Should Know
Cataract surgery does more than just fix cloudy lenses. This quick procedure changes lives and touches every part of a patient’s daily routine.
Improved vision and colour clarity
About 97% of people see better after cataract surgery. The change happens fast – patients notice clearer vision within days. Colours become more vibrant and vivid after the procedure.
Science explains these improvements in colour vision. Research shows removing cataracts lets more short-wavelength light reach the retina. Patients see the biggest improvements in blue-green to yellow-green colours (470nm to 580nm range), and their colour vision returns to normal just a day after surgery.
The best proof comes from comparing vision before and after surgery. Patients’ colour perception matches that of people who never had cataracts. What’s even more interesting is that many patients’ vision turns out better than it was before their cataracts developed.
Greater independence and mobility
Better vision leads to more independence. Quality of life scores jump up after surgery, as patients do better with close-up tasks, face fewer challenges, and need less help from others.
Patients feel more confident about:
- Cooking and shopping on their own
- Getting back to hobbies they had given up
- Moving around different places with ease
On top of that, many patients don’t need glasses anymore. A study showed 93.1% of people with advanced lenses didn’t use glasses six months after surgery.
Reduced risk of falls and injuries
The impact on safety is huge. The first cataract surgery cuts fall frequency by about 32%. Surgery on one eye reduces fall risk by 31%, while fixing both eyes might lower the risk by half.
This is a big deal since falls are the main cause of injury-related health problems and deaths among older people. A quarter of those over 65 fall at least once a year. It’s worth mentioning that 40% of hospital admissions for people over 65 happen because of fall-related injuries.
Cataract surgery isn’t just about better vision – it’s a proven way to prevent serious injuries that could change someone’s life.
Risks and Problems After Cataract Surgery (UK Focus)
Cataract surgery has excellent success rates, but like any surgery, it comes with potential risks. You should know about possible complications to make better decisions and recognize when you need medical help.
Common short-term side effects
Your eyes need time to heal after surgery. These temporary effects usually go away within days or weeks:
The dilating eye drops will make your vision blurry for several hours after surgery. Vision improvements take a few days, and complete stabilisation might need several weeks.
Expect some mild discomfort, redness, watering, and a gritty feeling that should fade away. Your doctor needs to know right away if you feel severe pain—it should not happen.
Bright lights might seem too intense for a while. A good pair of sunglasses helps manage this sensitivity outdoors.
Rare but serious complications
These complications don’t happen often but need quick medical attention:
Infection (endophthalmitis) rarely occurs but requires emergency care. Watch for warning signs like severe pain, swollen eyelids, growing redness, and vision that gets worse faster.
A detached retina shows up as flashing lights, new floaters, or a dark “curtain” moving across your sight. This needs immediate medical help.
Posterior capsule opacification (PCO) might develop months or years later. It makes vision cloudy again. Many patients get PCO eventually, but a quick laser procedure fixes it easily.
How to reduce your risk post-surgery?
These steps will substantially lower your risk of complications:
- Take eye drops exactly as prescribed—usually for about 4 weeks
- Keep your hands away from your eye
- Protect your eyes in the wind
- Stay out of swimming pools for 4-6 weeks
- Show up for all follow-up visits
When to seek immediate help: Call emergency services if your eye hurts badly, vision changes suddenly, redness or swelling increases, or you notice discharge.
The good news? Most patients heal without problems. The largest longitudinal study shows great vision results even 15-20 years after surgery, and most people never need more procedures.
Conclusion
Cataract surgery ranks among modern medicine’s greatest achievements. This procedure gives patients renewed independence through restored vision. The impressive 98% success rate proves its safety and effectiveness, despite natural concerns about surgery.
Patients notice dramatic improvements in their daily life after cataract surgery. Their vision becomes sharper and colours appear more vibrant. Most people see better vision within days. The risk of falls drops significantly, particularly after surgery on both eyes.
Complications rarely occur with this procedure. Patients who follow post-operative care guidelines and report warning signs quickly achieve the best results. Different lens choices help match each person’s lifestyle requirements.
Your journey to better vision starts with understanding the benefits and risks of cataract surgery. Our expert eye surgeons in Harley Street London, offer personalised consultations to help you make informed decisions about your next steps. We deliver expert care and clear results.
Better vision transforms every aspect of life – from enjoying books to moving safely through your world. Knowledge about the benefits, risks, and recovery helps you make confident decisions about your eye health. Quality outcomes depend on choosing skilled professionals and following their post-surgery guidelines.
FAQs
Q1. How safe is cataract surgery?
Cataract surgery is generally very safe, with a 98% complication-free rate. However, like any surgical procedure, it carries some risks. Serious complications are rare, especially when performed by an experienced surgeon. The safety profile is high, but it’s not 100% risk-free.
Q2. How long do the results of cataract surgery last?
The results of cataract surgery are typically long-lasting. When the natural lens is replaced with an artificial intraocular lens (IOL), it’s designed to last a lifetime. This means you won’t develop cataracts again in that eye. However, some patients may experience a clouding of the lens capsule (posterior capsule opacification) months or years after surgery, which can be easily treated.
Q3. What are the most significant risks associated with cataract surgery?
While serious complications are rare, the most significant risk is infection (endophthalmitis), which can lead to severe vision problems if not treated promptly. Other potential risks include retinal detachment, swelling, and in very rare cases, loss of vision. However, it’s important to note that the vast majority of patients experience successful outcomes without major complications.
Q4. Are there any long-term side effects of cataract surgery?
Long-term side effects from cataract surgery are uncommon. Some patients may develop posterior capsule opacification (PCO), which can cause vision to become cloudy again but is easily treatable with a laser procedure. A small percentage of people might experience persistent dry eyes. Generally, most patients enjoy improved vision for many years after surgery without significant long-term issues.
Q5. How soon after cataract surgery can I expect to see improvement in my vision?
Many patients notice clearer vision within a few days after cataract surgery. However, it’s normal for vision to be blurry at first and gradually improve over several days or weeks. Full visual recovery and stabilisation can take up to a few weeks. The speed of improvement can vary depending on individual factors and the type of lens implanted.
References
- https://www.pennmedicine.org/for-patients-and-visitors/patient-information/conditions-treated-a-to-z/cataracts
- https://www.guysandstthomas.nhs.uk/health-information/cataract-surgery/after-cataract-surgery
- https://pmc.ncbi.nlm.nih.gov/articles/PMC7987466/
- https://www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases/cataracts/cataract-surgery
- https://pmc.ncbi.nlm.nih.gov/articles/PMC1771665/
- https://www.health.harvard.edu/diseases-and-conditions/cataract-surgery-what-to-expect-before-during-and-after
- https://pmc.ncbi.nlm.nih.gov/articles/PMC2633455/
- https://pmc.ncbi.nlm.nih.gov/articles/PMC6383292/
- https://pmc.ncbi.nlm.nih.gov/articles/PMC7729353/
- https://www.aao.org/eye-health/tips-prevention/side-effects-cataract-surgery-complications-cope
- https://www.nhs.uk/conditions/cataract-surgery/
Authors & Reviewer
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Olivia: Author
Hi, I'm Olivia, a passionate writer specialising in eye care, vision health, and the latest advancements in optometry. I strive to craft informative and engaging articles that help readers make informed decisions about their eye health. With a keen eye for detail and a commitment to delivering accurate, research-backed content, I aim to educate and inspire through every piece I write.
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Dr. CT Pillai: Reviewer
Dr. CT Pillai is a globally recognised ophthalmologist with over 30 years of experience, specialising in refractive surgery and general ophthalmology. Renowned for performing over 50,000 successful laser procedures.