Please use this identifier to cite or link to this item: https://doi.org/10.1167/iovs.05-0906
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dc.titleLongitudinal study of anisometropia in Singaporean school children
dc.contributor.authorTong, L.
dc.contributor.authorChan, Y.-H.
dc.contributor.authorGazzard, G.
dc.contributor.authorTan, D.
dc.contributor.authorSaw, S.-M.
dc.date.accessioned2014-11-26T07:45:52Z
dc.date.available2014-11-26T07:45:52Z
dc.date.issued2006-08
dc.identifier.citationTong, L., Chan, Y.-H., Gazzard, G., Tan, D., Saw, S.-M. (2006-08). Longitudinal study of anisometropia in Singaporean school children. Investigative Ophthalmology and Visual Science 47 (8) : 3247-3252. ScholarBank@NUS Repository. https://doi.org/10.1167/iovs.05-0906
dc.identifier.issn01460404
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/109443
dc.description.abstractPURPOSE. The purpose of this study was to document the incidence rates of anisometropia, year-by-year prevalences, changes in the intereye difference in spherical equivalent (SE), and its association with myopia progression and axial length changes in a cohort of Singaporean school children. METHODS. This is a prospective cohort study of Singaporean school children (n = 1979) aged 7 to 9 years who were examined annually with cycloplegic refraction and ultrasonography over a 3-year period. RESULTS. In the 1908 children without anisometropia at commencement, the 3-year cumulative incidence rate of anisometropia (difference in SE at least 1.0 D) was 144 (7.55%; 95% CI: 6.42- 8.85). The mean intereye difference in SE in all children at baseline was 0.29 ± 0.46 D (SD: 0.46) and increased to 0.44 D (0.59) on the last examination. On the initial examination, 3.6% (95% CI: 2.8-4.4) or 71 children had anisometropia. Of the 59 of 71 children who completed all examinations, only 3 (5.1%) had an increase in the intereye difference in SE by at least 0.5 D, whereas 2 (3.4%) had a decrease of at least 0.5D. The mean intereye difference in SE was stable between visits. The change in intereye difference in SE correlated with the change in intereye axial length (r = 0.43). Compared with the isometropic children, each eye of the anisometropic children had a higher rate of progression of myopia. CONCLUSIONS. The 3-year incidence of anisometropia was 7.55% in these young Singaporean children. Although the frequency of anisometropia increased with time, the difference in SE between eyes tended to remain stable. Copyright © Association for Research in Vision and Ophthalmology.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1167/iovs.05-0906
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCOMMUNITY,OCCUPATIONAL & FAMILY MEDICINE
dc.description.doi10.1167/iovs.05-0906
dc.description.sourcetitleInvestigative Ophthalmology and Visual Science
dc.description.volume47
dc.description.issue8
dc.description.page3247-3252
dc.description.codenIOVSD
dc.identifier.isiut000239441200005
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