What is the definition of oscillopsia?

The definition of oscillopsia refers specifically to impaired gaze stability. This phenomenon occurs when there is a disruption in the vestibular system, which can lead to an inability to maintain a stable visual fixation on objects as the head moves. Individuals with oscillopsia may experience a sensation that the environment is moving or oscillating, which can significantly impact their ability to perceive their surroundings clearly and maintain visual focus during movement. This condition often arises in patients with vestibular disorders, where the connection between movement and visual perception becomes compromised.

In the context of the other choices, loss of balance is more related to postural control rather than direct visual perception, visual distortion pertains to altered visual acuity or clarity, and loss of hearing is not related to visual stability and involves auditory function. Thus, the core of oscillopsia is closely aligned with the impairment of gaze stability.