| Popis: |
A method of assessing fusional reserves using an interactive computer program, which allows to monitor the subjects report on the moment of fusion break with artificial increase of convergence or divergence of the vii sual axes in the measurement process was developed and tested. Control is achieved through the use of a purely binocular stimuli--random-dot stereograms, as well as dynamic markers, which are added to the main test object in a random order in the course of the measurement procedure to change the type of test-object. Test-object with a marker, encoded in the stereogram, is seen only at the expense of binocular mechanisms, and in violation ofifusion is no longer visible. Its disappearance helps the subject to determine when failure of fu-sion occurred, and the type of object with a marker before this point allows the experimenter to check the subject. Statistical analysis of primary and repeated measurements of fusion reserves in 72 subjects confimed the sufficient reliability of the method. |
