Movement hyperacuity in childhood amblyopia
Clinical Visual Research Unit, Department of Optometry,
University of Bradford, Bradford, West Yorkshire, BD7 1DP
Correspondence to: Dr Buckingham.
Accepted for publication 3 February 1998
BACKGROUND
Amblyopia results in deficits in a
number of visual functions in both the amblyopic and dominant eye. The
present work describes oscillatory movement displacement thresholds
(OMDT) in childhood amblyopia.
METHODSThe OMDT from the dominant and amblyopic
eyes of 50 orthoptic patients (aged 74 (SD 16) months) were compared
with those from a group of 24 controls (79 (21) months). OMDT were
measured using a forced choice staircase procedure. Subjects were asked
to identify which of the computer controlled monitors displayed the
oscillating stimulus. Visual acuity and stereoscopic responses were
noted from clinical records.
RESULTSAmblyopic children demonstrating
stereopsis showed no significant OMDT deficit in the amblyopic eye.
Those children having no stereopsis had elevated OMDT in the amblyopic
eye (p<0.05). Results suggest that the dominant eye of children with
amblyopia may also have a pattern of visual development which is
anomalous (difference in correlation coefficient with age; p <0.05).
CONCLUSIONOMDT deficits demonstrated in
some amblyopic eyes indicate that amblyopia is incompletely described
by its "clinical" definition. Results suggest that the dominant eye
in those with unilateral amblyopia may not be "normal".
© 1998 by British Journal of Ophthalmology
CiteULike 
Complore 
Connotea 
Del.icio.us 
Digg 
Reddit 
Technorati What's this?
Relevant Article
- Seeing beyond acuity
- TERRI L LEWIS
Br. J. Ophthalmol. 1998 82: 982-983.[Extract] [Full Text]
This article has been cited by other articles:
-
Davis, A. R., Sloper, J. J., Neveu, M. M., Hogg, C. R., Morgan, M. J., Holder, G. E.
(2008). Differential Changes in Color and Motion-Onset Visual Evoked Potentials from Both Eyes in Early- and Late-Onset Strabismic Amblyopia. IOVS
49: 4418-4426
[Abstract] [Full Text] -
Li, R. W., Young, K. G., Hoenig, P., Levi, D. M.
(2005). Perceptual Learning Improves Visual Performance in Juvenile Amblyopia. IOVS
46: 3161-3168
[Abstract] [Full Text]
- Full Text
- Full Text (PDF)
- Submit a response
- Alert me when this article is cited
- Alert me when eLetters are posted
- Alert me if a correction is posted
- Citation Map
Services
- Email this link to a friend
- Similar articles in this journal
- Similar articles in PubMed
- Add article to my folders
- Download to citation manager
- Request Permissions
Citing Articles
Google Scholar
PubMed
Topic Collections
Bookmark with
Register for free content
The full back archive is now available for all BMJ Journals. Institutional subscribers may access the entire archive as part of their subscription. Personal subscribers will also have access to all content when logged in. Non-subscribers who register have free access to all articles published before 2006 right back to volume 1 issue 1. Register here to access the free archive of all BMJ Journals.
Don't forget to sign up for content alerts so you keep up to date with all the articles as they are published.
