This Article  • References  • Full text PDF  • Reply to article  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Citing articles on Web of Science (4)  • Contact me when this article is cited  Related Content  • Similar articles in this journal  Social Bookmarking   What's this?

DAVID G. COGAN, M.D.; JOSEPH GINSBERG, M.D.

AMA Arch Ophthalmol. 1952;47(3):273-275.

	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 CORNEA has generally been believed to have the property of receiving pain but not touch sensation. Thus, a wisp of cotton or a fine hair elicits a distinctly unpleasant sensation when it touches the cornea, and graded test objects are said to elicit no other type of sensation.¹ Moreover, tactile end-organs have never been found in the cornea,² and there is indirect evidence, such as absence of vibration sense and the uniform rate of cocaine-induced anesthesia, that is said to indicate absence of touch sensation in the cornea. But, as indicated in a recent review by Adler,³ the evidence is not unequivocal, and recent observations by neurosurgeons⁴ on patients who have had the trigeminal tractotomy of Sjöqvist⁵ have shown uniformly a persistence of nonpainful sensation in the cornea with loss of pain and temperature sensation in the face. This finding has been interpreted as . . . [Full Text PDF of this Article]

Author Affiliations
BOSTON

From the Howe Laboratory of Ophthalmology, Harvard University Medical School, and the Massachusetts Eye and Ear Infirmary.

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