We found that in children with a particular type of amblyopia, accommodation was frequently asymmetrical (poorer in the amblyopic eye) and could even be inverse, with the amblyopic eye accommodating more in the distance than near.<\/strong><\/li>\n<\/ul>\nBackground\/Aims<\/h2>\n
To investigate the presence of asymmetrical accommodation in hyperopic anisometropic amblyopia<\/p>\n
Methods<\/h2>\n
Accommodation in each eye and binocular vergence were measured simultaneously using a PlusoptiX SO4 photorefractor in 26 children aged 4\u20138 years with hyperopic anisometropic amblyopia and 13 controls (group age-matched) while they viewed a detailed target moving in depth.<\/p>\n
Results<\/h2>\n
Without spectacles, only 5 (19%) anisometropes demonstrated symmetrical accommodation (within the 95%\u2009CI of the mean gain of the sound eye of the anisometropic group), whereas 21 (81%) demonstrated asymmetrical accommodation. Of those, 15 (58%) showed aniso-accommodation and 6 (23%) demonstrated \u2018anti-accommodation\u2019 (greater accommodation for distance than for near). In those with anti-accommodation, the response gain in the sound eye was (0.93\u00b10.20) while that of the amblyopic eye showed a negative accommodation gain of (\u22120.44\u00b10.23). Anti-accommodation resolved with spectacles. Vergence gains were typical in those with symmetrical and asymmetrical accommodation.<\/p>\n
Conclusion<\/h2>\n
The majority of hyperopic anisometropic amblyopes demonstrated non-consensual asymmetrical accommodation. Approximately one in four demonstrated anti-accommodation.<\/p>\n","protected":false},"excerpt":{"rendered":"
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