The minimum requirement for driving vision is to be able to read a number plate at 67ft. It has been shown that 10% of motorists would fail even this most basic of standard because of poor eyesight. If you do require spectacles for driving it is important that you wear them at all times. This may seem obvious but every day thousands of motorists do not wear their spectables for driving because they have forgotten them or they are only driving on familiar roads.
If you require spectacles for driving then make sure that on a sunny day that you use prescription sunglasses to maximise your visual performance. It is also essential that the windscreen is not scratched or dirty inside or out.
Most of us are awar ethat driving at night is more demanding and it is a fact that the number of night road accidents are much greater than those that occur during the day. There is no evidence to suggest that amber night driving spectacles that you see advertised in the press imrpove vision on the road. Indeed the Highway Code is very specific and warns drivers not to use any form of tint at night. A clear anti-reflection coating is beneficial for oncoming headlights at night time as will looking at the left on oncoming traffic. Unfortunately a variety of changes in the eye can contribute to discomfort from glare particualarly among older drivers. This is commonly caused by early cataracts so have your driving vision checked regularly. Your car lights are important so make sure that the headlamps are clean and that your lights are properly adjusted to provide good road illumination.