This Article  • 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?

Edited by G. W. H. M. van Alphen. Price, $4.50. Pp. 92, with 21 figures and 16 tables. S. Karger, Basel, Switzerland, American representative: Albert J. Phiebig, P.O. Box 352, White Plains, N.Y., 1961.

R. V. Hill, M.D., Reviewer
1329 Broadway Longview, Wash.

Arch Ophthalmol. 1962;68(3):438.

	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 author of this monograph is associated with the Ophthalmology Branch of the National Institute of Neurological Diseases and Blindness at Bethesda, Maryland. He has applied mathematical procedures to study correlations between the optical elements as the basis for a theory of ametropia. Purely statistical approaches, emphasizing distributions rather than correlations, generally have failed to yield significant clues as to the causes of ametropia. Van Alphen's approach strongly suggests that axial length is the most important factor. He presents laboratory evidence (strain-gage studies of scleral and choroidal stress, and pressure differentials between suprachoroid and intraocular spaces) that the axial length is determined primarily by ciliary and choroidal tension. He proposes that this tension varies in the same and in different eyes in attempts to "emmetropize" hypermetropic and myopic tendencies. Van Alphen postulates that choroidal tension influences axial length of the globe by forming a barrier between the intraocular hydrostatic pressure . . . [Full Text PDF of this Article]

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