Ögonspårare

An ögonspårare, which translates to "eye tracker" in English, is a device used to measure either the point of gaze or the motion of an eye relative to a head. The term ögonspårare is primarily used in Swedish contexts. These devices work by illuminating the eye, typically with infrared light, and then using a camera to record the reflection of this light on the cornea, known as the corneal reflection. By analyzing the position of the pupil and the corneal reflection, the system can determine where the user is looking.

Ögonspårare have a wide range of applications. In research, they are used in psychology and human-computer interaction to understand how people process information, navigate websites, or interact with visual stimuli. In marketing and user experience design, they help analyze consumer behavior by observing what elements of an advertisement or product packaging attract attention. For individuals with disabilities, eye-tracking technology can serve as an assistive communication device, allowing them to control a computer or communicate by simply looking at specific targets on a screen.

The accuracy and precision of ögonspårare can vary depending on the technology used and the specific application. Factors such as head movement, lighting conditions, and individual eye characteristics can influence the performance of these devices. Modern ögonspårare are often integrated into computer systems or specialized hardware, offering real-time gaze data.