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?

ERICH SACHS, M.D.; FRANCES L. MacCRAKEN, M.D.

Arch Ophthal. 1943;29(5):782-792.

	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 errors in tonometry arise from three principal sources. The first is entirely within the instrument, which may furnish wrong data owing to poor construction. The second involves the examiner who obtains inaccurate results from a good instrument because of faulty application or inaccurate reading. The third occurs because, although the results may be as good as possible, their quantitative interpretation is wrong owing to misconceptions of the principles involved. This paper is concerned only with the first source of tonometric errors, the apparatus itself, in its most widely used form, i. e., the Schiøtz tonometer.¹

The accuracy demanded of any tonometer has two aspects. Priestley Smith² formulated the distinction with his customary insight : 1. With what degree of accuracy can one measure the impressibility of the eye? 2. With what degree of accuracy does the impressibility indicate the intraocular pressure? The kind of accuracy with which this . . . [Full Text PDF of this Article]

Author Affiliations
DETROIT

From the Ophthalmic Research Laboratory, Wayne University College of Medicine.

Footnotes
This investigation was supported in part by the Jennie Grogan Mendelson Memorial Fund for Ophthalmology.

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