ON THE GOOD AND HARM FROM THE MODERN TECHNOLOGIES OF CREATING CINEMATOGFAPHIC STEREOIMAGES FOR THE PEOPLE WITH DIFFERENT STATES OF VISUAL FUNCTIONS
Some issues concerning perception of cinematographic stereoimages in the people with different states of visual functions are discussed. From the physiological analysis of the visual process and questioning the spectators, it follows that if the stereoscopic film lasted one and a half hour and had been created, edited and demonstrated correctly taking into account the peculiarities of the stereovision mechanism functioning in conditions of the movie theater, it should not cause discomfort and excessive fatigue in people with normal binocular vision. However, the stereofilms created without considering these peculiarities could be harmful even for such people causing eye tension, fatigue, headache, dizziness, nausea, psychological stress. For the people with severe binocular dysfunctions - for instance, with steady strabismus, - viewing stereofilm should do neither harm nor the possibility of getting stereoeffect; however, to avoid double images, one should wear stereoglasses. Evidently, one could expect the most noticeable potential harm from the 3D format for the individuals with mild impairments of binocular mechanisms constituting about 10% of population and for the people with curable binocular dysfunctions currently undergoing treatment.