A comparison between subjective and objective recording of ocular counter-rolling as a result of tilting

In order to develop a quick and reliable clinical method for recording counter-rolling as an indicator of the otolith function, 14 normal persons were investigated by both an objective and a subjective recording method. For the objective recording a goniometer ocular on a Zeiss microscope was used, and for the subjective method, a luminous cross, manipulatable along the three axes of the space. The results show that the objective recording is much more reliable and better reproducible than the subjective, and is consequently a good and quick recording method for clinical investigation of counter-rolling.