Thursday, June 24, 2010

Hering's Law

Abnormalities of the abducting eye in internuclear ophthalmoplegia reflect an adaptive process that helps overcome the adduction weakness of the opposite eye.

This response operates under the constraints of Hering's law of equal innervation: any attempt to increase the innervation to a weak muscle in one eye must be accompanied by a commensurate increase in innervation to the yoke muscle in the other eye.

Source :

Thanks to Dr Ngiu for asking this question after showing us patient with Right Internuclear Ophthalmoplegia today.



Post a Comment

Powered by Blogger