If you are applying for or renewing your HGV licence in the UK, passing a D4 medical is an essential step. This medical must be carried out by a GMC-registered doctor and ensures that you meet the DVLA Group 2 medical standards required for professional drivers.

For most drivers, the medical is required:

• When applying for a Group 2 licence (HGV, LGV, or PCV)
• Every 5 years from age 45
• Every year from age 65
• After certain medical conditions or licence suspensions

At Essential Medicals, we provide fast, cost-effective HGV medicals in London, including a free eye test, same-day appointments, and full D4 form completion.

One of the most important parts of your medical is meeting the required vision and hearing standards. In this guide, we explain exactly what’s expected and how you can prepare.

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Understanding HGV Eyesight Requirements

Eyesight standards for HGV drivers are stricter than those for standard car drivers. This is because professional drivers spend long hours on the road and are responsible for larger, heavier vehicles.

Visual Acuity Standards

During your HGV medical, your vision will be tested using a Snellen chart.

To meet DVLA Group 2 standards, you must have:

• At least 6/7.5 vision in one eye
• At least 6/60 in the other eye

This can be achieved with glasses or contact lenses if needed.

If you wear glasses:

• Your prescription must not exceed +8 dioptres

There is no upper limit for contact lenses, which makes them a good option for some drivers.

Visual Field Requirements

It’s not just about how clearly you can see. Your field of vision is equally important.

You must have:

• A horizontal visual field of at least 160 degrees
• At least 70 degrees left and right
• At least 30 degrees up and down

This ensures you can detect hazards from all directions, which is critical for safe driving.

Colour Vision

While there are no strict pass or fail rules for colour blindness, your ability to recognise colours is still assessed. This is important for identifying traffic lights, warning signals, and road signs.

At Essential Medicals, your free eye test includes both visual acuity and colour vision checks, ensuring full compliance with DVLA requirements.

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What About Hearing Requirements?

Unlike eyesight, there are no fixed DVLA hearing thresholds for HGV drivers.

However, hearing is still assessed during your medical to ensure you can safely respond to your environment.

Your doctor will check that you can hear:

• Emergency vehicle sirens
• Car horns
• Audible warnings on the road

If there are concerns, further assessment may be recommended. In some cases, hearing aids may be acceptable, depending on individual circumstances.

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What Does an HGV Medical at Essential Medicals Include?

At Essential Medicals, we provide a complete, DVLA-compliant D4 driver medical designed to be quick, efficient, and stress-free.

Each appointment includes:

• Review of your medical history and medications
• Blood pressure and pulse check
• Height, weight, and BMI assessment
• Free eye test (visual acuity and colour vision)
• Cardiovascular and neurological checks
• Mental health screening
• Completion of your D4 form by a GMC-registered doctor

We also offer same-day bookings, helping you stay on track with your licence requirements.

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Tips to Improve Your Eyesight Before an HGV Medical

Looking after your vision can make a real difference when it comes to passing your medical.

Here are some simple steps:

• Book regular eye tests with an optician
• Keep your prescription up to date
• Stay hydrated
• Eat foods rich in vitamins A, C, and E
• Include omega-3 fatty acids in your diet
• Wear sunglasses to protect against UV damage

Small changes can help maintain healthy vision over time.

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How to Protect Your Hearing

Good hearing is essential for road awareness and safety.

To support your hearing health:

• Avoid prolonged exposure to loud noise
• Keep music volume at a safe level when driving
• Attend regular hearing checks if needed
• Keep ears clean and free from wax build-up

If you notice any changes in your hearing, it’s always best to seek advice early.

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Who Needs an HGV (D4) Medical?

You will need a D4 driver medical if you are:

• Applying for a new HGV, LGV, or PCV licence
• Renewing your licence from age 45 onwards
• Returning to driving after a break or medical condition
• Managing conditions such as diabetes, sleep apnoea, or high blood pressure

Our assessments meet DVLA Group 2 standards and are suitable for both individual drivers and fleet operators.

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Why Choose Essential Medicals?

Choosing the right clinic can make your experience much smoother.

At Essential Medicals, we offer:

• Same-day appointments in London
• Competitive pricing from £55
• Free eye test included
• Experienced GMC-registered doctors
• Full D4 form completion on-site
• SEQOHS-accredited occupational health services

We are trusted across multiple sectors, including construction, transport, and infrastructure, supporting both individual drivers and organisations.

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Supporting Driver Health and Wellbeing

Beyond medicals, we believe in supporting long-term health.

At Essential Medicals, we work with businesses and individuals to:

• Promote workplace wellbeing
• Reduce sickness absence
• Support safe working environments
• Provide health checks and wellness advice

A healthy driver is a safer driver.

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Book Your HGV Medical Today

Your HGV medical does not need to be stressful or time-consuming.

At Essential Medicals, we make the process simple, efficient, and fully compliant with DVLA standards.

Whether you are applying for your first licence or renewing, our team is here to help you get through your medical quickly and confidently.

Book your appointment today and stay on the road with confidence. 🚛

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