IOVS
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

(Investigative Ophthalmology and Visual Science. 2004;45:2152-2162.)
© 2004 by The Association for Research in Vision and Ophthalmology, Inc.
DOI:  10.1167/iovs.03-0875
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (21)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Logan, N. S.
Right arrow Articles by Dunne, M. C. M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Logan, N. S.
Right arrow Articles by Dunne, M. C. M.

Posterior Retinal Contour in Adult Human Anisomyopia

Nicola S. Logan,1 Bernard Gilmartin,1 Christine F. Wildsoet,2 and Mark C. M. Dunne1

1From the Ophthalmic and Physiological Optics Research Group, Neurosciences Research Institute, Aston University, Aston Triangle, Birmingham, United Kingdom; and the 2School of Optometry, University of California, Berkeley, California.

PURPOSE. It is well documented that myopia is associated with an increase in axial length or, more specifically, in vitreous chamber depth. Whether the transverse dimensions of the eye also increase in myopia is relevant to further understanding of its development.

METHODS. The posterior retinal surface was localized in two-dimensional space in both eyes of young adult white and Taiwanese-Chinese iso- and anisomyopes (N = 56), from measured keratometry, A-scan ultrasonography, and central and peripheral refraction (±35°) data, with the aid of a computer modeling program designed for this purpose. Anisomyopes had 2 D or more interocular difference in their refractive errors, with mean values in their more myopic eyes of –5.57 D and in their less myopic eyes of –3.25 D, similar to the means of the two isomyopic groups. The derived retinal contours for the more and less myopic eyes were compared by way of investigating ocular shape changes that accompany myopia, in the posterior region of the vitreous chamber. The presence and size of optic disc crescents were also investigated as an index of retinal stretching in myopia.

RESULTS. Relative to the less myopic eyes of anisometropic subjects, the more myopic eyes were more elongated and also distorted into a more prolate shape in both the white and Chinese groups. However, the Chinese eyes showed a greater and more uniform relative expansion of the posterior retinal surface in their more myopic eyes, and this was associated with larger optic disc crescents. The changes in the eyes of whites displayed a nasal–temporal axial asymmetry, reflecting greater enlargement of the nasal retinal sector.

CONCLUSIONS. Myopia is associated with increased axial length and a prolate shape. This prolate shape is consistent with the proposed idea that axial and transverse dimensions of the eye are regulated differently. The observations that ocular shape changes are larger but more symmetrical in Chinese eyes than in eyes of whites warrant further investigation.




This article has been cited by other articles:


Home page
 IOVSHome page
T. Y. P. Chui, H. Song, and S. A. Burns
Individual Variations in Human Cone Photoreceptor Packing Density: Variations with Refractive Error
Invest. Ophthalmol. Vis. Sci., October 1, 2008; 49(10): 4679 - 4687.
[Abstract] [Full Text] [PDF]

Home page
 IOVSHome page
M. D. Bailey, L. T. Sinnott, and D. O. Mutti
Ciliary Body Thickness and Refractive Error in Children
Invest. Ophthalmol. Vis. Sci., October 1, 2008; 49(10): 4353 - 4360.
[Abstract] [Full Text] [PDF]

Home page
 IOVSHome page
L.-F. Hung, R. Ramamirtham, J. Huang, Y. Qiao-Grider, and E. L. Smith III
Peripheral Refraction in Normal Infant Rhesus Monkeys
Invest. Ophthalmol. Vis. Sci., September 1, 2008; 49(9): 3747 - 3757.
[Abstract] [Full Text] [PDF]

Home page
 IOVSHome page
D. O. Mutti, J. R. Hayes, G. L. Mitchell, L. A. Jones, M. L. Moeschberger, S. A. Cotter, R. N. Kleinstein, R. E. Manny, J. D. Twelker, K. Zadnik, et al.
Refractive Error, Axial Length, and Relative Peripheral Refractive Error before and after the Onset of Myopia
Invest. Ophthalmol. Vis. Sci., June 1, 2007; 48(6): 2510 - 2519.
[Abstract] [Full Text] [PDF]

Home page
 IOVSHome page
K. D. Singh, N. S. Logan, and B. Gilmartin
Three-dimensional modeling of the human eye based on magnetic resonance imaging.
Invest. Ophthalmol. Vis. Sci., June 1, 2006; 47(6): 2272 - 2279.
[Abstract] [Full Text] [PDF]

Home page
 IOVSHome page
D. O. Mutti, G. L. Mitchell, J. R. Hayes, L. A. Jones, M. L. Moeschberger, S. A. Cotter, R. N. Kleinstein, R. E. Manny, J. D. Twelker, K. Zadnik, et al.
Accommodative Lag before and after the Onset of Myopia.
Invest. Ophthalmol. Vis. Sci., March 1, 2006; 47(3): 837 - 846.
[Abstract] [Full Text] [PDF]

Home page
 IOVSHome page
D. A. Atchison, N. Pritchard, K. L. Schmid, D. H. Scott, C. E. Jones, and J. M. Pope
Shape of the Retinal Surface in Emmetropia and Myopia
Invest. Ophthalmol. Vis. Sci., August 1, 2005; 46(8): 2698 - 2707.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2004 by the Association for Research in Vision and Ophthalmology