Möbius sign is a

clinical sign Signs and symptoms are diagnostic indications of an illness, injury, or condition. Signs are objective and externally observable; symptoms are a person's reported subjective experiences. A sign for example may be a higher or lower temperature ...

in which there is an inability to maintain

convergence Convergence may refer to: Arts and media Literature *''Convergence'' (book series), edited by Ruth Nanda Anshen *Convergence (comics), "Convergence" (comics), two separate story lines published by DC Comics: **A four-part crossover storyline that ...

of the

eye An eye is a sensory organ that allows an organism to perceive visual information. It detects light and converts it into electro-chemical impulses in neurons (neurones). It is part of an organism's visual system. In higher organisms, the ey ...

s. It is found in patients with

Graves' disease Graves' disease, also known as toxic diffuse goiter or Basedow's disease, is an autoimmune disease that affects the thyroid. It frequently results in and is the most common cause of hyperthyroidism. It also often results in an enlarged thyro ...

. The sign is named after

Paul Julius Möbius Paul Julius Möbius (; 24 January 1853 – 8 January 1907) was a German neurologist born in Leipzig. His grandfather was the German mathematician and theoretical astronomer August Ferdinand Möbius (1790–1868). Prior to entering the medical fi ...

References

Symptoms and signs: Endocrinology, nutrition, and metabolism Endocrinology {{Thyroid disease