Ewing's sign is a medical term that was named after the American ophthalmologist A.E. Ewing. This symptom is an important indicator of fundus diseases such as diabetic retinopathy and hypertensive retinopathy.
The symptom is that when examining the fundus of the eye, a pigmentation defect is revealed in the area of the optic disc, which resembles a white area. This defect can have a different shape and size, but is usually oval or round in shape.
Ewing's symptom is the result of a circulatory disorder in the vessels of the fundus, which can be caused by various reasons, including high blood pressure, diabetes mellitus and other diseases that affect the condition of the blood vessels.
Due to the fact that the Ewing sign is a sensitive indicator of fundus diseases, its use in clinical practice can help to identify and begin treatment of relevant diseases in a timely manner.
In conclusion, the Ewing sign is an important indicator of the condition of the fundus and can be used to diagnose various diseases. If you suspect you have eye problems, be sure to consult an ophthalmologist for diagnosis and treatment.