Confidence in all conditions

Vision that’s clear for when the road is anything but.

driving in the dark in street
Driving is by far the most popular means of transport in the UK and for many people is essential in maintaining independence and improving their quality of life. Legal visual requirements in the UK ensure a certain standard of vision is achieved by all drivers, however, driving is visually and cognitively demanding, and it becomes more problematic when visual conditions are not optimal such as in low light and poor weather.

man sitting in car driving

Winter means shorter days and more darkness

As we head into winter there is more likelihood of drivers facing these challenging conditions due to shorter days and worsening weather. With this in mind Eye Care Professionals must take care to ensure we are fully meeting this challenge. Most night driving takes place under conditions of mesopic illumination, where contrast sensitivity (CS) and visual acuity (VA) are both reduced, and pupil enlargement causes blur. It’s worth nothing that a disproportionate amount (approximately 42%) of fatal accidents occur in the hours of darkness despite only 25% of driven miles being undertaken in the same period. Although the reasons for the elevation in fatalities are likely to be multifactorial, including alcohol consumption and fatigue, visual factors play a major role in night driving accident statistics.

Glare and dazzle caused by car headlights at night can be a real challenge when driving.

Disability glare from headlights is of particular concern as this can affect visual performance which can seriously impact driving performance. For night driving, modern car lights, such as xenon high intensity discharge (HID) and light-emitting diode (LED) headlamps, which are brighter and provide more road illumination compared to tungsten-halogen lamps, can positively impact driver performance. However, the increased brightness also leads to increased levels of discomfort and disability glare for other drivers.

Professional Service Manager of ZEISS Paul Hopkins
Paul Hopkins, Professional Services Manager

ZEISS DriveSafe Lenses are an everyday lens optimised for driving, to help drivers feel more confident when out on the road. In a research project we found 82% of wearers agree that they feel more confident driving in all weather conditions1 with ZEISS DriveSafe.

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man at iprofiler

What can we do?

Firstly, regular eye tests are recommended for all drivers to make sure their refraction is accurate and up to date. With spectacles used for driving it’s particularly important for practitioners to advise patients of the need for adaptation to any new or changed spectacle prescription prior to driving, particularly driving at night.
ZEISS refraction equipment including the ZEISS i.Profilerplus can help practitioners provide a more accurate prescription which compensates for high order aberrations induced by variation in pupil size. ZEISS lenses with i.Scription Technology  include this data to offer potential visual improvements.
Once an accurate, up to date refraction has been achieved the next important choice is the lenses. Lens design is particularly important, as research shows when we drive, we continually shift our gaze between the road, signposts, mirrors and car instrumentation. Maintaining clarity across as much of the lens as possible is therefore vital for driver comfort and safety.

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Related Product
woman driving in a car
ZEISS DriveSafe Lenses

Everyday lenses specifically designed to meet the visual needs of drivers. Incorporating lens design features and key technologies to enhance the wearer’s driving experience.


  • 1 Based on a consumer survey conducted with 105 existing ZEISS DriveSafe Lens wearers, 82% agreed, strongly agreed or completely agreed, the lenses helped them feel more confident driving in all weather conditions.