How does an octopus eye react in free fall?
Statocysts are composed of a spherical structure with smaller granule statoliths inside; the orientation of these granules is recepted by cilia receptor cells. So in a situation like the ISS, statoliths would be randomly floating around, being recepted by cila receptor cells. At some times, the distribution of statoliths may be concentrated on one side, triggering random changes in the direction of the eye. So in this situation, the direction of the eye may be constantly changing.