62 THE DISEASES OF THE THYROID GLAXD 



In many cases the development of the eye symptoms comes about very 

 gradually. In other cases, the terrifying alterations may develop in a few 

 days, indeed over night. We should distinguish between protrusion and 

 widening of the palpebral fissures. In fully developed cases both symptoms 



FIG. 7. Protrusion of the eye-balls in Basedow's disease. 



are for the most part really present together. The protrusion of the eye- 

 balls is well seen in the accompanying illustration. 



Observation II. K. I., fifty years old, the morbus Basedowi has lasted about ten 

 years, tachycardia, sweats, formerly profuse diarrhea, tremor, formerly marked emacia- 

 tion, and high-grade nervousness; lately condition better, for years a stationary condition. 



The protrusion of the eye-balls is explained by most authors by an in- 

 creased fullness of the orbital vessels. The rapid variations in the intensity 



