The term "weak sight" covers a vast amount of ignorance on the part of many doctors, and a multitude of distressing symptoms in many patients. So much is now known of asthenopia and the parts involved, that it is inexcusable in any one to treat a patient by glibly informing him his sight is weak, and that all that is requisite is medicine. In some cases medicine alone is all that is required; but in by far the large majority abnormal ...