Electronystagmograph

An electronystagmograph (ENG) is a diagnostic device that records involuntary eye movements by detecting electrical signals generated during nystagmus. Clinically, it helps identify conditions like vestibular disorders, multiple sclerosis, or drug-induced eye movement abnormalities by measuring and analyzing eye motion patterns during testing.

These devices are typically regulated as medical instruments, often requiring compliance with standards for electrical safety and performance accuracy. They may be supplied as standalone systems or integrated with other vestibular assessment tools, depending on the manufacturer’s design and intended clinical use.