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The effect of asymmetrical accommodation on anisometropic amblyopia treatment outcomes

Toor, S., Horwood, A. and Riddell, P. (2019) The effect of asymmetrical accommodation on anisometropic amblyopia treatment outcomes. Journal of AAPOS. ISSN 1091-8531 (In Press)

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To link to this item DOI: 10.1016/j.jaapos.2019.05.010

Abstract/Summary

Background: Previous research revealed that the majority of children with anisometropic amblyopia have asymmetrical accommodation. Only 19% (5/26) had symmetrical accommodation, 58% (15/26) had aniso-accommodation and 23% (6/26) had anti-accommodation. The aim of this preliminary study was to determine if the type of accommodation response was associated with a poor amblyopia treatment outcome in the same patients. Methods: The type of accommodation response of 26 children with anisometropic amblyopia was determined in a previous study. The final visual acuity (VA) in the amblyopic eye, post amblyopia treatment, was compared between those with symmetrical, aniso- and anti-accommodation. Results: There was a significant difference in final VA between the 3 accommodation groups (p = 0.023). The anisometropic amblyopes with anti-accommodation had the poorest final VA (0.42 ±0.25 (±95% CI) logMAR) with a statistically significant difference when compared to those with aniso-accommodation (0.14 ±0.08 logMAR; p = 0.023). However the difference failed to reach significance when compared to those with symmetrical accommodation (0.20 ±0.12 logMAR; p = 0.234), probably due to the small sample size. The initial VA in the amblyopic eye and the degree of anisometropia were also significantly positively correlated with final VA (both p < 0.001). Conclusions: The presence of anti-accommodation in anisometropic amblyopia was associated with a poorer amblyopia treatment outcome. The initial VA in the amblyopic eye and the degree of anisometropia were also associated with a poorer treatment outcome. It is possible that all these factors are associated but further research is required to determine causal relationships.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Psychology and Clinical Language Sciences > Department of Psychology
Faculty of Life Sciences > School of Psychology and Clinical Language Sciences > Development
Faculty of Life Sciences > School of Psychology and Clinical Language Sciences > Perception and Action
ID Code:83772
Uncontrolled Keywords:anisometropia amblyopia accommodation
Publisher:Elsevier

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