Visual impairment is defined as a reduced perception of contrasts, a reduced perception of colours and a reduced ability to see because of sensitivity to bright lights. The possibility of travelling can be considerably improved by using plenty of colour contrast in the design of steps, edges, bollards, ticket counters, seating and toilet areas and with the use of contrasting handrails and door fittings and sufficient lighting. These aids are needed in the transport field (stations, bus stops, airports, streets and in vehicles), in public buildings (administrative premises, museums, hospitals, etc.) and in the private sector (hotels, recreational facilities). Research is being carried out by the authors organisation, the Retinitus Pigmentosa Association, into colour confusion and the best colours and colour combinations to help those suffering from RP as well as other visual handicaps.
Abstract