Figure 1: A series of Hess chart and binocular single-vision field results. The diagonal line area in the Goldmann chart represents the normal limit of Japanese binocular single vision field. Downward gaze at 30 degrees is not detected on the Hess chart, except in Figure 1I. A, B. Examination at first visit. The Hess chart shows mild restriction of downward gaze in the left eye. The upper-right, left, and inferior areas of the binocular singlevision field are defective. C, D. Examination 3 months after triamcinolone acetonide injection. The Hess chart shows a new restriction of upward gaze in the right eye. The binocular single-vision field has narrowed in the upper area. E, F. Examination 1 week after the initial steroid pulse therapy. Although the Hess chart shows little change, the binocular single-vision field has widened in the upper area. G, H. Examination 2 months after initial steroid pulse therapy. Upward gaze in the right eye is restricted in the Hess chart, which corresponds to the upper-area defect of the binocular single-vision field. I, J. Examination 1 month after second steroid pulse therapy. Upward gaze restriction in the right eye has improved in the Hess chart, and the binocular single-vision field has widened.