When it comes to driving a Heavy Goods Vehicle (HGV), your vision plays a vital role in ensuring road safety—for you, your cargo, and everyone else on the road. Passing the HGV eyesight test is part of HGV Medical and it is not just a legal requirement in the UK; it’s essential for your safety and career. In this guide, we’ll break down everything you need to know about the eye test for HGV drivers, from the Snellen scale to field-of-vision standards.
What Is the HGV Eyesight Test?
The HGV eyesight test ensures you meet strict medical and vision standards set by the DVLA. It’s more comprehensive than the standard car test and includes checks for visual acuity, peripheral vision, and glare or contrast sensitivity.
Visual Acuity Requirement:
According to DVLA to pass the test, you must have at least 6/7.5 vision in your best eye and 6/60 in the other on the Snellen chart. This is possible with glasses or contact lenses, but if you wear glasses, the corrective power must not exceed +8 dioptres. There is no limit for contact lenses.
Can You Drive a Lorry with One Eye?
Yes, but only under certain conditions. If you only have vision in one eye, that eye must meet the 6/7.5 standard, and you must have an adequate field of vision. The DVLA may request a field-of-vision test before granting or renewing your licence.
HGV Eye Test Requirements: Full Breakdown
- Snellen Scale Requirement: 6/7.5 in the good eye, 6/60 in the other.
- Horizontal Visual Field: At least 160 degrees (70° left and right, 30° up and down).
- Central Field: No defects within a central 30° radius.
- Corrective Lenses: Glasses not exceeding +8 dioptres; no limit for contact lenses.
- No serious issues with glare sensitivity, contrast, or night vision.
If you’re unsure where you stand, you can perform a 20-metre eye test online by trying to read a number plate from that distance in daylight.
Is 6/7.5 Vision OK for Driving?
Yes, 6/7.5 is the standard minimum for HGV drivers. Regular drivers only need 6/12, so the requirement for HGVs is more stringent. If your prescription is old, you risk failing the test. A quick visit to an optician could make all the difference.
HGV Eye Test Online: Can You Pre-Check?
Online tools like the HGV eye test chart and number plate reading tests offer a way to check your vision before booking your medical. While these aren’t substitutes for professional tests, they’re helpful for identifying potential issues early.
What Happens If You Fail the HGV Eye Test?
Failing the test doesn’t mean your career is over. Here’s what you can do:
- Visit an optometrist for a full examination.
- Get a prescription for glasses or contacts that meet the standards.
- Ask your optician to fill in the vision section of your D4 medical form.
- Reapply for your licence once you meet the criteria.
If you’ve already been driving, your licence may be temporarily suspended until you’re retested and pass.
DVLA and Field of Vision Tests
If you have a condition that may affect your peripheral vision, the DVLA may request a field of vision test. This test ensures that your peripheral awareness is sufficient to safely operate a large vehicle.
You must notify the DVLA of any condition that affects both eyes or your only functional eye. Not doing so could result in a revoked licence and legal consequences.
Can Truckers Wear Glasses?
Absolutely. Most HGV drivers wear glasses or contact lenses to meet the visual acuity standard. The important part is that the glasses do not exceed +8 dioptres in correction. Always bring your glasses prescription to your HGV medical.
HGV Medical Eye Test: Best Practices to Pass
Here are some tips to help you pass your HGV medical eye test on the first try:
- Rest well the night before.
- Bring your glasses or contact lenses.
- Avoid screen time before your test.
- Practice reading number plates at 20 metres.
- Get your eyes checked at least once a year.
If your company conducts annual vision checks (which they should), make sure you’re always prepared.
Vision and Safety: Why It Matters
As an HGV driver, your vision is one of your most important tools. Poor eyesight can delay reaction times, cause difficulty navigating, and increase accident risk. Employers are advised to perform regular eye checks, especially after incidents or complaints.
An incident due to poor vision could affect insurance claims, customer trust, and legal standing—issues no driver or business wants to face.
Conclusion
The HGV eyesight test is an essential part of your driving medical, and passing it ensures that you are fit to drive safely across the UK’s roads. If you’re unsure about your vision, get checked early—especially if your licence is up for renewal. Use online tools for quick assessments, but always follow up with an optometrist for a definitive result.
Make your vision a priority. A small step like an annual eye exam could protect your licence, your livelihood, and the lives of those around you.