Beeinflussen Prismen nach H.-J. Haase die Augenprävalenz?

Abstract

The prevalence of one eye is a common phenomenon in normal binocular vision (with the amount of prevalence often being different for triangles presented in front of or behind the fixation target). In only a few subjects can prevalence be reduced with prisms. Equivalence as reported by oral description (method 1) was often not confirmed by drawing (method 2) or by the computer-controlled alignment (method 3). As an explanation for the differences between methods 1, 2 and 3 we assume that the oral description of the test perception was influenced by imponderables such as the expectation on the side of the experimenter and/or the desire to please on the side of the subject. The present results do not support the prevalence test--as developed by H.-J. Haase--for the correction of associated phoria.