Eye shape and retinal shape, and their relation to peripheral refraction

Verkicharla, Pavan K., Mathur, Ankit, Mallen, Edward A.H., Pope, James M., & Atchison, David A. (2012) Eye shape and retinal shape, and their relation to peripheral refraction. Ophthalmic and Physiological Optics, 32(3), pp. 184-199.

12-month embargo period (PDF 663kB)
Accepted Version.

View at publisher


Purpose: We provide an account of the relationships between eye shape, retinal shape and peripheral refraction.

Recent findings: We discuss how eye and retinal shapes may be described as conicoids, and we describe an axis and section reference system for determining shapes. Explanations are given of how patterns of retinal expansion during the development of myopia may contribute to changing patterns of peripheral refraction, and how pre-existing retinal shape might contribute to the development of myopia. Direct and indirect techniques for determining eye and retinal shape are described, and results are discussed. There is reasonable consistency in the literature of eye length increasing at a greater rate than height and width as the degree of myopia increases, so that eyes may be described as changing from oblate/spherical shapes to prolate shapes. However, one study indicates that the retina itself, while showing the same trend, remains oblate in shape for most eyes (discounting high myopia). Eye shape and retinal shape are not the same and merely describing an eye shape as being prolate or oblate is insufficient without some understanding of the parameters contributing to this; in myopia a prolate eye shape is likely to involve both a steepening retina near the posterior pole combined with a flattening (or a reduction in steepening compared with an emmetrope) away from the pole.

Impact and interest:

25 citations in Scopus
Search Google Scholar™
25 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

97 since deposited on 27 Apr 2012
22 in the past twelve months

Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.

ID Code: 49891
Item Type: Journal Article
Refereed: Yes
Keywords: eye shape, peripheral refraction, retinal shape, conic section
DOI: 10.1111/j.1475-1313.2012.00906.x
ISSN: 1475-1313
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Current > Schools > School of Optometry & Vision Science
Copyright Owner: Copyright 2012 The College of Optometrists
Deposited On: 27 Apr 2012 00:33
Last Modified: 26 Jul 2014 15:30

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page