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

A REVIEW

JACOB B. FELDMAN, M.D.

Arch Ophthal. 1938;19(6):882-901.

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

The purpose of this paper is to review the subject of dark adaptation and the technic for its study. A brief sketch of the common instruments used to record dark adaptation is given, with particular reference to the method by which the quality of the light is retained throughout its entire varying range of intensity. The quantitative instrument I now use in my studies is described.

Dark adaptation, as the term implies, is the ability which the eye has to adapt itself to darkness. For example, if one enters a darkened cinema theater on a sunny day, it is impossible at first to see any seats, but after a specified number of minutes objects are somewhat clearer. As time goes on, improvement in vision is noted, until the sight becomes as distinct as if the theater were illuminated. This physiologic function of the normal human being is one . . . [Full Text PDF of this Article]

Author Affiliations
PHILADELPHIA

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