silmänseurannan

Silmänseurannan, which translates to "eye tracking" in English, is a technology that allows for the measurement and analysis of where a person's eyes are looking. It works by detecting the position of the pupil and the direction of the gaze. Various methods are employed, including infrared light-based systems that illuminate the eye and reflect light off the cornea and pupil, with specialized cameras recording the reflections to calculate gaze direction.

The primary applications of eye tracking are diverse. In research, it's used to understand visual attention, cognitive processes, and user behavior in areas like marketing, human-computer interaction, and psychology. For instance, researchers can observe what parts of a webpage or advertisement a user focuses on. In accessibility, eye tracking offers a communication and control method for individuals with severe motor impairments, enabling them to interact with computers and their environment using only their eye movements. This can involve selecting letters on a virtual keyboard or controlling a cursor.

Industries also leverage eye tracking for product design and usability testing. By observing how users interact with a product, designers can identify areas of confusion or difficulty, leading to improved ergonomics and user experience. In the field of healthcare, it's explored for diagnosing certain neurological conditions and for rehabilitation purposes. The technology has evolved significantly, becoming more portable, accurate, and affordable, which has broadened its adoption across many scientific, commercial, and assistive domains.