Convergence insufficiency and accommodative insufficiency in children View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2019-02-21

AUTHORS

Amélia F. Nunes, Pedro M. L. Monteiro, Francisco B. P. Ferreira, António S. Nunes

ABSTRACT

PURPOSE: Convergence and accommodative insufficiency represent the main cause of complaints during close visual work and can reduce visual performance and comfort. Knowing their prevalence among schoolchildren is fundamental to define strategies for action. The purpose of this study was to estimate the frequency of these conditions in children in 5th and 6th school years in inland Portugal and to assess the impact that each visual condition has on their quality of life, based on the level of visual symptoms. METHODS: a cross-sectional study was carried out with children enrolled in the 5th and 6th school years. 372 children (192 girls) were assessed, with average ages of 10.9 ± 0.9 years. Refractive error and binocular vision assessment, integrating accommodative parameters, were used to analyse the visual condition. Symptoms were quantified using the Portuguese version of the CISS (Convergence Insufficiency Symptom Survey). RESULTS: The prevalence of definite Convergence Insufficiency (CI) in the children assessed was 2%. A prevalence of 6,8% could be considered if clinically significant CI (high suspect and definite categories) cases are accounted. In relation to Accommodative Insufficiency (AI), a frequency rate of 10% was recorded, with 3% of the evaluated children presenting AI and CI simultaneously. The symptoms score was higher in AI than in CI. CONCLUSIONS: A frequency of approximately 10% was found for each one of the visual syndromes, and it was verified that visual discomfort is common among teenagers who carry these conditions. In cases of asthenopia, such as headaches and loss of concentration, associated with near vision activities, there is a requirement to evaluate the quality of binocular vision. More... »

PAGES

58

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1186/s12886-019-1061-x

DOI

http://dx.doi.org/10.1186/s12886-019-1061-x

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1112292002

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/30791877


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