Double Vision? You Could Be Driving Illegally

Thousands of drivers in the UK may be unknowingly driving with an invalid license and insurance due to unreported double vision, a condition known medically as diplopia. This visual impairment, where a single object appears as two, significantly compromises depth perception and spatial awareness, making it incompatible with safe driving unless fully controlled.

The Driver and Vehicle Licensing Agency (DVLA) legally requires individuals with double vision to report their condition. Failure to do so can result in a fine of up to £1,000, invalidation of motor insurance, and even prosecution, particularly if an accident occurs as a result.

Consultant surgeon Mr. Nadeem Ali emphasizes that even if symptoms seem manageable, regulatory bodies view double vision as a serious concern. The DVLA evaluates each case individually. While driving may be allowed if diplopia is stable and controlled with aids like prism lenses or eye occlusion, uncontrolled double vision typically leads to license suspension.

Professional drivers, such as lorry and bus drivers, face even stricter visual standards, and a diagnosis could end their careers. Beyond informing the DVLA, motorists must also notify their insurance providers about any medical condition affecting their driving ability to avoid claim refusals after a collision.

Diplopia can manifest suddenly and may be linked to various health issues, including strokes, diabetes, thyroid eye disease, or head trauma. Treatments, including prism glasses and surgery, can often restore single vision, potentially allowing individuals to regain their independence and legal driving privileges, subject to DVLA approval.