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More and more during the past few years, has the attention of the profession been called to the frequency with which functional or reflex disturbances are caused by disturbances of vision. The latest issued contribution to this subject (of any considerable length or pretense) is a work by Dr. George T. Stevens, of New York, to which was awarded the prize of the Royal Academy of Belgium in 1883, and that is now presented in the English language. The work is based on a large number of cases of nervous disease, both in private and hospital practice. The conclusion that he arrived at in his investigations is thus formulated: Difficulties attending the functions of accommodating and of adjusting the eyes in the act of vision, or irritations arising from the nerves involved in these processes, are among the most prolific sources of nervous disturbances, and more frequently than other