Asymmetrical accommodation in hyperopic anisometropic amblyopia

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Toor, S., Horwood, A. M. ORCID: https://orcid.org/0000-0003-0886-9686 and Riddell, P. ORCID: https://orcid.org/0000-0002-4916-2057 (2018) Asymmetrical accommodation in hyperopic anisometropic amblyopia. British Journal of Ophthalmology, 102 (6). pp. 772-778. ISSN 0007-1161 doi: 10.1136/bjophthalmol-2017-310282

Abstract/Summary

Background/Aims: To investigate the presence of asymmetrical accommodation in hyperopic anisometropic amblyopia. Methods: Accommodation in each eye and binocular vergence were measured simultaneously using a PlusoptiX SO4 photorefractor in 26 children aged 4 to 8 years with hyperopic anisometropic amblyopia and 13 controls (group age-matched) whilst they viewed a detailed target moving in depth. Results: Without spectacles, only 5 (19%) of anisometropes demonstrated symmetrical accommodation (within the 95%CI of the mean gain of the sound eye of the anisometropic group), whereas 81% demonstrated asymmetrical accommodation. Of those, 15 (58%) showed aniso-accommodation and 6 (23%) demonstrated “anti-accommodation” (greater accommodation for distance than for near). In those with anti-accommodation the response gain in the sound eye was (0.93 ±0.20) whilst that of the amblyopic eye showed a negative accommodation gain of (-0.44 ±0.23). Anti-accommodation resolved with spectacles. Vergence gains were typical in those with symmetrical and asymmetrical accommodation. Conclusion: The majority of hyperopic anisometropic amblyopes demonstrated non-consensual asymmetrical accommodation. Approximately one in four demonstrated anti-accommodation.

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Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/72157
Identification Number/DOI	10.1136/bjophthalmol-2017-310282
Refereed	Yes
Divisions	Life Sciences > School of Psychology and Clinical Language Sciences > Department of Psychology Life Sciences > School of Psychology and Clinical Language Sciences > Development Life Sciences > School of Psychology and Clinical Language Sciences > Perception and Action
Publisher	BMJ Publishing Group
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Funders:	Medical Research Council	The sponsoring bodies who contributed funding for the creation of this item. Example: NERC Example: The Royal Society of Chemistry A pick list of funders may appear as you type in the funder's name in full or as an acronym. Select a correct match to complete the field or type in a new entry in full. For new entries, the full name is preferred.
Projects:	Typical and atypical ocular accommodation and convergence characteristics and relationships over the life span Funded by: Medical Research Council (G0802809 - £565,793) Local Lead (PI): Anna Horwood 31 December 2009 - 31 March 2014	Click Add to select your project (received at Reading) from an autocomplete list.

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Date Deposited:	05 Sep 2017 11:01	Date item deposited into CentAUR
Last Modified:	31 Aug 2024 02:40	Date item last modified

References

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