[Autonomic ophthalmologic aspects of occupational environmental health effects on seamen aboard transport and commercial vessels].

Complex investigations of the functional state of the visual analyser and vascular system has been carried out in 150 practically healthy members of a screw working in extreme conditions of a long-term voyage. It is shown that approximately one month after the beginning of the voyage the observed members of the screw developed signs of functional changes in visual acuity, light sensitivity, intraocular pressure level, hemodynamic indices. The main tendency is seen in some rise of the level of the studied indices within the first three-six months with their subsequent fall. Possible mechanisms of changes developing in conditions of long-term voyage, especially the role of the state of the vegetative nervous system, and possibilities of prophylactic measures stimulating the weakening of dysfunctional disturbances are discussed.