On the question of the innervation of pupil movements

Any researcher on the question of the innervation of the movements of the iris is involuntarily amazed, on the one hand, by the amazing abundance of works on this branch of physiology and, at the same time, solid works, produced by outstanding scientists, and on the other, not less than the amazing diversity of the prevailing views, even prevailing in the foundations of the study of pupillary movements. The last ten years of the past century have been the period of especially lively debates in literature on the most significant issues of this department and, it seems, will not be exaggerated, if we say that not one side of the question about the innervations of the movements of the pupil has not been left again. But from the review of these numerous works, it is difficult to come to no less than a definite, immutable conclusion on any issue.