In the Archives of Ophthalmology, Vol. xx, No. 1, 1891, I announced my discovery of "Insufficiency of the Oblique Muscles." I closed that paper by saying of the nervous symptoms brought about by that state: "I can see no hope of prevention or cure." On the 17th day of May, 1892, while a patient was before me whom I had known to be a sufferer from this condition for two years, and to whom I had often said, "There is not now, nor can I see how there ever can be, any relief for this trouble," a thought of the proper means of correction dawned upon me. I at once applied the newly thought of principle in this case, and with the most gratifying results. Of this case I shall have more to say before closing this paper.
Before setting forth the treatment I will refer to the condition itself,