Using the HGV/PSV option SeeDrivePro tests at standards equivalent to Snellen 6/7.5 and 6/60 visual acuity. It is a more advanced test than the car and van drivers’ number plate test described below.
Each eye has to be tested separately using smaller letters which must be read correctly by at least one eye. The other eye must at least read the larger letters correctly.
The above visual acuity test complies with the FORS recommendations for vision tests every 6 months.
If a driver fails SeeDrivePro they should be advised to visit an optometrist or ophthalmologist for further investigation and advice.
Additionally, the DVLA also requires that drivers should have full and normal side vision when looking straight ahead. If in doubt a driver’s visual field test called an Estermann test, can be carried out by an optometrist or ophthalmologist.