Introduction Visual field loss can affect one eye (monocular) or both eyes (binocular) and may affect the central or peripheral visual field or a combination. Common causes include stroke, glaucoma, diabetic retinopathy and age-related macular degeneration (ARMD). Many of these ocular conditions are age related, and according to the Office of National Statistics, the UK population is ageing; therefore, visual field impairment is projected to increase in the future (Office of National Statistics 2018). Stroke, glaucoma and diabetic retinopathy are generally associated with peripheral field loss and ARMD with central visual field loss. Visual fields can also be affected from a younger age by less-frequent conditions, such as retinitis pigmentosa and Stargardt's disease. The sensory information relevant to driving is predominately visual (Sivak 1996). Thus, anything affecting vision has the potential to affect driving ability. Driving is challenging and potentially hazardous for those with visual field loss, because the road is a dynamic environment. The impact of visual field loss on driving will depend upon a combination of factors, such as extent of defect, location and ability to compensate. Important driving components often affected include steering, lane position, traffic-gap judgement, speed, blindside detection and collision avoidance (