[Studies of the eye tracking function in changed sensory conditions with new soft- and hardware and computer tests]

The new soft- and hardware is intended to specifically test the eye-tracking profession in order to diagnose and monitor the ocular and related sensory systems. Oculography is used to investigate different forms, including spontaneous and evoked, of visual tracking by computer stimulation of the sensory inputs. The system validation was a part of the pre- and post-flight examination of Russian spacecrew members, and protocol of the 7-d dry immersion. As a result, demonstrated was a considerable degradation of the precision and velocity, and extension of time parameters after long-duration missions with differentiation of concurrent peripheral vestibular disturbances and central structural changes. Throughout the period of immersion, the parameters displayed diverse changes which rendered distinction between baseline and experimental data impossible. Comparative analysis of the post-flight and experimental data showed that the most marked deviations in the eye tracking function were peculiar to cosmonauts on return from long-duration space flight.