A large proportion of the population suffers from various eye injuries and neuromuscularcontrol their eyes and focus their sight. Treatment of these disorders is subject to visual therapy. During it, the patient has to perform monotonous eye exercises for a long period of time. As a result, the motivation of patients to train the eyes in the long run is reduced. To solve this problem, we offer a specially designed eye therapy game, a modification of a popular game “Pacman“.
During the game, the players control a blue circle with their own eyes. The specific point of the sight is captured and projected on the computer screen with the “Tobii eye tracker 4C” eye tracker. The player must focus on the circle that they’re controlling. In order to direct the movement of the circle in one of the possible directions (up, down, left, right) you need to direct your sight from the circle in the appropriate direction. The area around the controlled circle is divided into 4 zones. When the projection of a person’s sight goes to one of these zones, the circle starts to move in the corresponding direction (see Fig. 1). In this way, the controlled circle moves in the specified direction through the labyrinth.
The game has several modes. The purpose of the first mode is to collect all the red balls in the labyrinth within the shortest possible time (see fig. 2). The goal of the second one is to collect as many balls as possible within a fixed time. In this mode, red balls appear in different places of labyrinths until the game’s time ends.
In order to achieve the goals of the game and to move to the next level, the user must perform horizontal and vertical eye movements. The user would also perform this type of movements during the sight therapy in the doctor’s office.
The number of horizontal and vertical movements of the eye depends on the structure of the labyrinth of the game. A labyrinth generation algorithm was developed to allow create new maps of game levels comfortably, in which a certain number of vertical and horizontal paths would dominate. Because of the algorithm, the system user or supervising physician can instantly change the labyrinth structure, indicating the parameters of horizontal and vertical paths. In this way, the patient is forced to perform the specified number of horizontal and vertical eye movements.
The game not only allows you to exercise your eyes, but also captures the static and dynamic characteristics of a particular person’s sight. Static sight characteristics are the coordinates of the points of view of both the human eye and the target object (target). Dynamic sight characteristics or sequences (sight changes between two fixation points) are described by direction, amplitude and velocity. The captured sight parameters can be used for analysis and when analysing the patient’s progress and condition.
Duration:
2018 - 2018
