Yes, you can often keep driving with cataracts, as long as your eyesight still meets the legal standard for driving. In the UK, that means you must be able to read a number plate from 20 metres away, with glasses or contact lenses if you use them, and have good enough sharpness of sight and field of vision.
Cataracts usually get worse slowly, and glare, night driving and faded contrast can make the road harder long before you fail an eye test.
This guide covers driving before cataract surgery: the UK rules, when to tell the DVLA and the signs it may be time to stop. If you have already had your operation, see our guide on when you can drive after cataract surgery.
Key Takeaways
- Having a cataract does not stop you from driving on its own. What matters is whether you meet the legal eyesight standard.
- You must be able to read a number plate from 20 metres and have sight of at least 6/12, using both eyes together.
- The DVLA says cataracts are often safe to drive with, and you may not need to tell them, as long as you meet the standards.
- If you do not meet the standard, you must stop driving and tell the DVLA.
- Cataract surgery usually restores driving vision, but you must wait for clearance afterwards.
What Does the Law Say About Driving With Cataracts?
There is no blanket ban on driving with cataracts in the UK. The law focuses on how well you can see, not the name of your eye condition.
The Eyesight Standard for Car and Motorcycle Drivers
Car and motorcycle drivers are known as Group 1 drivers. According to GOV.UK, you must:
- Read a number plate from 20 metres away: That is about the length of five parked cars. You can wear glasses or contact lenses if you need them for driving.
- Have visual acuity of at least 6/12: This is measured on the Snellen chart (the letter chart at the optician), using both eyes together.
- Have an adequate field of vision: This is how much you can see around you, including to the sides, while looking straight ahead.
If you need glasses or contact lenses to meet these standards, you must wear them every time you drive.
What About Bus and Lorry Drivers?
Bus and lorry drivers (Group 2) need sight of at least 6/7.5 in the better eye and 6/60 in the other, plus a wider field of vision. They must tell the DVLA about any eyesight problem in either eye. If you drive for a living, speak to your eye specialist early.
Do You Need to Tell the DVLA About Cataracts?
Not always. In its guidance for doctors and opticians, the DVLA says people with cataracts are often safe to drive and may not need to tell them. The key condition is that you still meet the minimum eyesight standards.
You must tell the DVLA, and stop driving, if:
- You can no longer meet the eyesight standards for driving
- A GP, optician or eye specialist has told you that you should not drive
- You have another eye problem the DVLA lists, such as glaucoma or double vision, that affects both eyes
The GOV.UK eye conditions page explains how to report a condition online or with form V1. It also warns that you can be fined up to £1,000 if you do not tell the DVLA about a medical condition that affects your driving. You may be prosecuted if you are involved in an accident as a result.
The NHS gives the same advice: if you are not sure whether your sight is good enough, ask an optician.
Worried Your Cataracts Are Affecting Your Driving?
If glare or blur is making the road feel less safe, a proper check gives you a clear answer.
- A full eye check with a named consultant
- Honest advice on whether you meet the driving standard
- A clear plan for treatment if and when you need it
How Cataracts Change the Way You See the Road
A cataract clouds the lens inside your eye. Light scatters as it passes through the cloudy lens, instead of focusing cleanly. Our cataracts page explains the different types in more detail.
For drivers, the problem is often less about reading letters and more about the quality of what you see.
Why Headlights Feel So Dazzling at Night
Glare is one of the most common complaints. Oncoming headlights, street lights and low winter sun can flare out and wash over your view. You may see halos or rings around lights. The NHS lists glare and difficulty seeing at night among the main symptoms.
This matters for the law too. The DVLA notes that glare may stop you passing the number plate test, even when your sight on a chart looks good enough. So a "pass" in a dim test room does not always mean you are safe on a bright, wet evening.
Why Road Signs and Edges Look Faded
Cataracts reduce contrast. Grey cars on grey roads, cyclists at dusk and kerbs in the rain can be harder to pick out. Colours may also look dull or yellowish, which can make traffic lights and signs less vivid.
When Should You Stop Driving With Cataracts?
You must stop at once if you cannot meet the legal standard. But many people find driving becomes uncomfortable before that point. Take these signs seriously:
- You cannot read a number plate at 20 metres, even with your glasses
- You avoid driving at night, in rain or into low sun because of glare
- You have had near misses, or missed a cyclist, pedestrian or sign
- Family or friends have said they are worried about your driving
- Your optician has said your sight is close to the driving limit
A simple self-check is to stand 20 metres from a parked car in good daylight and try to read its number plate. If you struggle, do not drive. Book an eye test before you get back behind the wheel.
Many people stop driving at night first. That can be a sensible short-term step, but it is not a substitute for an eye test.
Can You Drive With a Cataract in One Eye or Both Eyes?
Cataracts often affect both eyes, but not always at the same pace. The legal standard is based on your sight with both eyes open. So if one eye is clear, you may still meet the standard even if the other has a cataract.
Cataracts in both eyes are more likely to take your overall sight below the limit. If you only have useful sight in one eye, the standard applies to that eye. Bus and lorry rules set a minimum for each eye, so a cataract in just one eye can matter.
Who Checks Whether Your Eyes Are Safe to Drive?
You do not have to work this out alone.
Your Optometrist
Your optician (optometrist) is usually the first to spot a cataract. They can check your sight and field of vision, tell you if you are close to the driving limit, and refer you to an eye specialist.
Your Consultant Eye Surgeon
Your consultant will examine the cataract and the rest of your eye, and check whether anything else, such as glaucoma or a retina problem, is affecting your sight. They will then talk through driving, daily life and whether surgery makes sense now.
At The Eye Doctor in Huddersfield, named consultants carry out cataract assessments, including our founder Dr Fayyaz Musa and Mr Murtuza Mookhtiar, a cataract and retinal specialist.
The DVLA
If you report your condition, the DVLA may send you for a free eyesight test with one of their contracted opticians, which can include a field test called the Esterman test. They then decide on your licence using all the medical evidence.
Struggling With Night Glare Behind the Wheel?
You do not have to keep putting off evening journeys. A short call can help you plan your next step.
- Talk through your symptoms with our team
- Find out if cataract surgery may suit you
- Get a clear plan from a named consultant
How Cataract Surgery Can Get You Back on the Road
The NHS explains that cataracts get worse over time, and that surgery is needed if you want to improve your sight. During cataract surgery, your surgeon removes the cloudy lens and replaces it with a clear artificial lens. The operation is done under local anaesthetic, and you usually go home the same day. Our guide on how long cataract surgery takes walks you through the day.
For many people, clearer sight means less glare and more confidence at night. Your consultant can explain standard and premium lens options, and whether you may still need glasses for driving.
You will not be able to drive straight after surgery. You must wait until your eye has settled and your consultant confirms you meet the standard again. Our cataract surgery aftercare guide explains how to look after your eye while it heals.
What About the Gap Between Your First and Second Eye?
If you have cataracts in both eyes, we treat them on separate days. In between, your eyes may see quite differently, and your old glasses may no longer suit the treated eye. Ask your consultant whether you meet the standard during this gap.
How Much Does Treatment Cost?
Costs depend on the lens and the care you choose. See our pricing page and our cataract surgery cost guide for the latest figures.
Staying Safe While You Wait for Treatment
If you are still within the legal standard and waiting for surgery, these steps can help:
- Keep your windscreen clean: Dirt and smears on the glass make glare much worse.
- Wear your up-to-date glasses: Get your prescription checked if your sight has changed.
- Avoid driving at night or in poor weather: If glare bothers you, plan journeys in good daylight.
- Have regular eye checks: Your sight can change, so do not rely on an old result.
If your sight drops below the standard while you wait, stop driving and tell the DVLA.
Conclusion
So, can you drive with cataracts? Often, yes. Many people drive safely in the early stages, as long as they can read a number plate at 20 metres and meet the 6/12 standard. But cataracts usually get worse, and glare can make driving unsafe before you notice a big drop in sharpness. If you cannot meet the standard, you must stop driving and tell the DVLA.
The good news is that cataract surgery usually restores the sight you need to drive. At The Eye Doctor Clinic in Huddersfield, a named consultant can check your eyes, give you honest advice on driving and help you plan the right time for treatment.
FAQs
Is it illegal to drive with cataracts in the UK?
No. Having cataracts is not illegal for driving. It becomes illegal to drive if your sight falls below the legal standard, such as being unable to read a number plate from 20 metres.
Do I have to tell the DVLA I have cataracts?
Not always. The DVLA says cataracts are often safe to drive with and you may not need to tell them, as long as you meet the eyesight standards. You must tell them if you no longer meet the standards or a professional has told you not to drive.
Can you drive with cataracts in both eyes?
You may be able to, if your sight with both eyes open still meets the standard. Cataracts in both eyes are more likely to take you below the limit, so regular eye checks are important.
Can I drive at night with cataracts?
Night driving is often the first thing to become hard, because cataracts scatter light and cause glare. If headlights dazzle you or you cannot see clearly, avoid driving at night and get your eyes checked.
Does my car insurance need to know about cataracts?
Insurers have their own rules, so check your policy. If you have told the DVLA about a condition, ask your insurer whether you also need to tell them.
Can cataract surgery help me pass the DVLA eyesight standard?
For most people, cataract surgery greatly improves sight and helps them meet the driving standard again. Your consultant will confirm when your eye is ready, usually at your follow-up check.
How soon can I drive after cataract surgery?
You cannot drive on the day of surgery. You can drive again once your consultant confirms your sight meets the standard. Our driving after cataract surgery guide explains the timeline in full.