Peripheral sensory information and postural control in children with strabismus.

Abstract:

BACKGROUND:Sensory feedback from the visual system along with the vestibular and somatosensory systems is essential for the regulation of normal postural control. Children with strabismus and, therefore, with abnormal binocular vision, may have an altered perception of space and use different sets of cues to determine depth perception when compared with children without strabismus. OBJECTIVE:To explore the postural control of children with and without strabismus, when the three sensory systems are challenged. METHOD:Forty-six children (21 with strabismus and 25 age-matched controls) aged between 5 and 10 years completed ophthalmic screening and then underwent assessment for postural control, which included Paediatric Balance Scale (PBS) and six conditions of the Sensory Organization Test (SOT). Four primary outcome measures were: PBS summary score, Equilibrium Score (ES), Strategy Score (SS) and Sensory Analysis Score of the SOT. RESULTS:A significant difference (P < 0.05) was observed between the strabismus and non-strabismus group in the PBS and, ES and SS of SOT condition 1. The Sensory Analysis scores were significantly different (P = 0.03) between the groups for 'Somatosensory'. Simple linear regression analysis suggested that the strabismus condition was significantly (P ≤ 0.02) associated with the PBS and, the ES and SS of condition 1, with a variance of 14.6%, 16.1% and 12.8%, respectively. Subgroup analysis suggested that age was a significant (P ≤ 0.001) correlate for balance scores in non-strabismus group (R2 ranged from 32% to 58.4%), but not for the strabismus group. SIGNIFICANCE:Postural control in children with strabismus is not equivalent to that of children without strabismus, when their somatosensory system is challenged. Additionally, the functional balance performance of children with strabismus is lower than their counterparts without strabismus. Collectively, the results suggest that the usual improvement in balance performance with increasing age is observed in children without strabismus but not in children with strabismus.

journal_name

Gait Posture

journal_title

Gait & posture

authors

Jayakaran P,Mitchell L,Johnson GM

doi

10.1016/j.gaitpost.2018.07.173

subject

Has Abstract

pub_date

2018-09-01 00:00:00

pages

197-202

eissn

0966-6362

issn

1879-2219

pii

S0966-6362(18)31264-5

journal_volume

65

pub_type

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