This Article  • References  • Full text PDF  • Reply to article  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Contact me when this article is cited  Related Content  • Similar articles in this journal  Social Bookmarking   What's this?

LEO L. MAYER, M.D.

Arch Ophthal. 1935;13(2):254-262.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

A new doctrine of physiologic investigation has appeared. It concerns more especially the activity of muscles and nerves in relation to electrical stimulation. The groundwork was brought forth by Lapicque¹ in his experimentation with nerves and nerve-muscle preparations. Of more recent date has been its practical application in neurology. Now its premises are creeping into ophthalmology as they relate to the musculature of the face, the extra-ocular muscles, the instrinsic muscles of the eye and, finally, the retina and optic pathways.

The term ``chronaxia'' may be defined as the time during which a current of twice the threshold intensity (i. e. two times as strong as the constant current which causes a minimal stimulation) must flow to produce a minimal stimulation. In this brief outline I shall attempt to explain in simple language the doctrine of chronaxia as it concerns the eye. An introduction into this subject . . . [Full Text PDF of this Article]

Author Affiliations
CHICAGO

From the Department of Nervous and Mental Diseases and the Department of Ophthalmology, Northwestern University Medical School.

CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter     What's this?