Eye dominance and the fixation behaviour

This Bachelor-Thesis analysed the difference of the fixation behaviour between the eye with the sensory eye dominance and the eye without.

The sighting test and sensory eye dominance were compared with the fixation behaviour and then were tested with the Eye Link II using a simple fixation model with nine dots. The measurement with the Eye Link II was done using a dissociated performance. 30 persons were tested on two different days.

The analysis of the Eye Link II data showed a significant correlation between the absolute deviation of the x-direction and the sensory eye dominance as well as between the absolute deviation of the y-direction and the sighting eye dominance. This could be confirmed with an advanced analysis using a separated examination of the first and second measurement. There was also a significant correlation between the sensory eye dominance and the standard deviation of the y-direction and the average fixation disparity in x- and y-direction.

There is a definite correlation between fixation accuracy and sighting respectively the sensory eye dominance. Different variables had confirmed this. There was also a significant difference between the first and second measurement. Furthermore, there is a difference if the sighting test (Hole-inthe-Card-Test) or the sensorial test by Joos was used.

Project-Information

• Execution: Anita Forrer, Sara Märki, BSc Optométrie
• Coaching: Prof. Dr. Roland E. Joos