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Guide

DVLA Eyesight Test — The 20-Metre Rule

How the eyesight check at the start of the UK driving test works, what counts as a fail, and what to do if you wear glasses.

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In short

At the start of the UK driving test, the examiner asks you to read a number plate at 20 metres (about 5 car lengths). If you can't, the test ends before you drive. If you wear glasses for driving, wear them. Visual acuity must be at least 6/12 Snellen, with or without correction.

How the eyesight test works

  1. 1. The examiner walks you to a spot in the test centre car park.
  2. 2. They point out a parked car about 20 metres away (20.5m for old pre-2001 plates).
  3. 3. They ask you to read the number plate aloud.
  4. 4. If you can, you pass and the test continues.
  5. 5. If you can't, you can try a different parked car (some examiners offer a second attempt). If you still can't, the test ends.

Tips

  • · Wear your driving glasses/lenses if you have them.
  • · Get an eye test in the months before booking the practical — you don't want to find out at the test centre.
  • · Bright sunlight can wash out plates — squint, or shade your eyes with your hand if needed.
  • · Take your time. The examiner won't rush this part.

After the eyesight test

If you pass, the examiner moves on to show-me-tell-me. See our show me tell me guide for all 21 questions.

FAQ

What's the eyesight test on the UK driving test?
At the start of the practical test, the examiner asks you to read a number plate at 20 metres (or 20.5 metres for old-style plates). Failing this check ends the test before you drive.
Can I wear glasses for the eyesight test?
Yes. If you wear glasses or contact lenses for driving, wear them. You must then wear them for the test itself.
What happens if I fail the eyesight test?
The test ends immediately. You don't get to drive. You'll need to see an optician, possibly get glasses, and rebook the test.
How far is 20 metres?
About 5 car lengths, or the length of a standard double-decker bus. The examiner will mark a spot and ask you to read from there.
What's the minimum eyesight standard for driving?
Visual acuity of 6/12 on the Snellen scale, with or without correction, in your better eye. Field of view at least 100° horizontally.
Do I have to declare poor eyesight to the DVLA?
Yes, by law. If your eyesight no longer meets the minimum standard, you must tell the DVLA — failing to is a criminal offence.