[Use of Pulfrich's stereo-phenomenon in determining stereoscopic vision].

PURPOSE

To check whether a test based on Pulfrich's stereophenomenon can be applied to determine stereopsy.

MATERIAL AND METHODS

The group of 24 patients with normal visual acuity and stereopsy and 15 with ambylopia without stereopsy were tested with Pulfrich's pendulum test.

RESULTS

This method yielded 24 positive and 15 negative cases confirming the previous assessments. Neither false positive nor false negative cases were recorded.

CONCLUSION

The simplicity and reliability of this method in determining stereopsy provide arguments for its widespread use.