<unk> , or<unk> 's phenomenon, is the presence of visible (through an ophthalmoscope) pulsation of retinal arteries, found in patients with aortic insufficiency or Graves' disease. The sign was named after Otto Heinrich Enoch<unk> .
Becker's sign
Adson's sign
Hoover's sign 
Dance's sign
Darier's sign
Dahl's sign
Braverman's sign
Pemberton's sign