Light Therapy and the Seasonal Affective Disorder

To the Editor.—  In their recent reply to Dr Stewart's¹ letter to the editor (October 1987), Dr Wehr and colleagues² erred in their citation of their own second reference by the omission of my name as an author.³ As clearly stated in the "Methods" section of that initial report on seasonal affective disorder and light therapy, I made the initial observations on the seasonal disorder and the initial treatments with light. Since that time, I have gone on to treat over 200 patients with the seasonal disorder. As a result of my experience,⁴ I support Dr Stewart's comments in part: (1) Light therapy is not particularly effective for the majority of my patients with the seasonal disorder. Only approximately 15% of these patients respond to light, and these patients are those who are only mildly ill and have had few or no hospitalizations for their disorder.