Which type of perimetry technique involves a moving target?

The kinetic perimetry technique is characterized by the use of a moving target to assess the visual field. In this method, a stimulus, such as a light source, is moved into the periphery of a patient's vision from a non-seeing area. The patient's task is to indicate when they can perceive the moving target. This allows for the measurement of boundaries of visual field sensitivity and is particularly effective in detecting scotomas or areas of diminished vision.

Kinetic perimetry offers a dynamic approach as opposed to other methodologies. For example, threshold perimetry typically uses static points that remain in the same location to determine the minimum amount of light the patient can see. Static perimetry assesses the visual field at fixed points without the movement aspect, while automatic techniques often utilize technology and pre-defined protocols without the interactive element of motion. Thus, kinetic perimetry's distinctive feature of incorporating a moving target sets it apart from other perimetry techniques.