A new red/green target consisting of a ball and ring was proposed by Dr. Donald Schuman, and tested on forty-three subjects by comparing it to five other tests. Comparisons were made based on luster, diplopia, suppression and normal second degree fusion. The Ball and Ring target was found comparable to the other tests in identifying suppression, diplopia and luster. No significant differences were found in the identification of anomalies between the tests. The Ball and Ring target was found to an effective testing device. It is well suited as an economical home training device.
Files are restricted to Pacific University. Sign in to view.