In presenting this subject I recognize fully the difficulties I encounter. The list of agents which when taken into the system produce disturbances of vision is a long one. I do not hope, therefore, to present them all. I shall select those that are most frequent and interesting and show in fact only the skeleton of the subject, leaving to you the task of clothing it with beauty and with flesh.
In the beginning I desire to express my indebtedness to Dr. G. de Schweinitz1 and Dr. Casey M. Wood2 for the assistance I have received in preparing this paper from their works entitled "The Toxic Amblyopias."
By the term toxic amblyopia I understand an interference in vision produced by certain drugs or substances that have been absorbed by the human system. Following Dr. Wood I divide them into two great classes: 1, those that directly affect the
CLAIBORNE JH. THE EFFECT OF THE EXTRINSIC POISONS ON THE EYE.. JAMA. 1897;XXVIII(4):150–154. doi:10.1001/jama.1897.02440040006001b