dc.contributor.author | Betts, Michael John | |
dc.date.accessioned | 2013-04-16T12:07:04Z | |
dc.date.available | 2013-04-16T12:07:04Z | |
dc.date.issued | 2013-04-16 | |
dc.identifier.uri | http://hdl.handle.net/10222/21727 | |
dc.description.abstract | Purpose: To examine the relationship between visual acuity (VA) and radial deformation acuity (RDA) in children 6 to 12 years of age with amblyopia.
Methods: RDA was measured in 35 participants with the Manchester RDA charts. VA was measured with the Early Treatment Diabetic Retinopathy Research Study (ETDRS) chart.
Results: Median VA in non-amblyopic and amblyopic eyes was 0.04 logMAR (IQF -0.06 – 0.12) and 0.24 (IQF 0.12 – 0.04), respectively (Wilcoxon Signed Ranks test, z = -5.07, p < 0.001). Median RDA in non-amblyopic and amblyopic eyes was 2.73 log (IQF 2.53 – 2.87) and 2.63 log (IQF 2.53 – 2.77), respectively (Wilcoxon, z = -2.56, p < 0.05). Spearman correlation suggested that the amblyopic deficits in VA and RDA were related, r = -0.42, p < 0.05.
Conclusion: A deficit in RDA was present in most children with amblyopia. A moderate relationship was noted between the amblyopic deficits found in VA and RDA. | en_US |
dc.language.iso | en | en_US |
dc.subject | Amblyopia | en_US |
dc.subject | Hyperacuity | en_US |
dc.subject | Radial Deformation Acuity | en_US |
dc.subject | Contrast Sensitivity | en_US |
dc.title | Radial Deformation Acuity In Children With Amblyopia | en_US |
dc.date.defence | 2013-03-25 | |
dc.contributor.department | Department of Clinical Vision Science | en_US |
dc.contributor.degree | Master of Science | en_US |
dc.contributor.external-examiner | Dr. Nathan Crowder | en_US |
dc.contributor.graduate-coordinator | Dr. Balwantray Chauhan | en_US |
dc.contributor.thesis-reader | Leah Walsh | en_US |
dc.contributor.thesis-reader | Dr. Francois Tremblay | en_US |
dc.contributor.thesis-supervisor | Karen McMain, Dr. Paul H. Artes | en_US |
dc.contributor.ethics-approval | Received | en_US |
dc.contributor.manuscripts | Not Applicable | en_US |
dc.contributor.copyright-release | Not Applicable | en_US |