Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/132818
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dc.titleHigher order ocular aberrations in eyes with myopia in a Chinese population
dc.contributor.authorWei, R.H.
dc.contributor.authorLim, L.
dc.contributor.authorChan, W.K.
dc.contributor.authorTan, D.T.H.
dc.date.accessioned2016-12-13T05:36:54Z
dc.date.available2016-12-13T05:36:54Z
dc.date.issued2006-09
dc.identifier.citationWei, R.H., Lim, L., Chan, W.K., Tan, D.T.H. (2006-09). Higher order ocular aberrations in eyes with myopia in a Chinese population. Journal of Refractive Surgery 22 (7) : 695-702. ScholarBank@NUS Repository.
dc.identifier.issn1081597X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/132818
dc.description.abstractPURPOSE: To describe the characteristics of higher order ocular aberrations of adult Chinese eyes with myopia. METHODS: Higher order aberrations in consecutive right eyes of 166 Chinese patients with myopia who enrolled for preoperative assessment for LASIK were retrospectively reviewed. Wavefront aberrations were measured with the Bausch & Lomb Zywave over a 6-mm dilated pupil. The correlations between higher order aberrations and myopia, astigmatism, and age, respectively, were analyzed. RESULTS: Mean patient age was 32.1±6.2 years, the mean refractive error was sphere -5.23±1.79 diopters (D) and cylinder -1.29±0.98 D. The mean of the total higher order root-mean-square (RMS) (third to fifth order) was 0.49±0.16 μm. Third-order RMS was largest (mean 0.37±0.16 μm), followed by fourth-order RMS (mean 0.29±0.11 μm). For individual higher order Zernike coefficients, spherical aberration (C4 0) predominated with a mean of 0.23±0.14 μm. No correlation was found between total higher order RMS and myopia or between total higher order RMS and age. Small but statistically significant relationships were found in the following groups: age and vertical primary coma (C3 -1) (r=-0.206, P=.008); age and spherical aberration (C4 0) (r=0.196, P=.012); and myopia and horizontal trefoil (C3 3) (r=-0.158, P=.042). CONCLUSIONS: Higher order aberrations varied among individuals with myopia. Third-order RMS was the predominant higher order aberration. Spherical aberration and vertical primary coma increased slightly with age. Our study helps establish ocular aberration standards for Chinese refractive surgery candidates.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentOPHTHALMOLOGY
dc.description.sourcetitleJournal of Refractive Surgery
dc.description.volume22
dc.description.issue7
dc.description.page695-702
dc.description.codenJRSUF
dc.identifier.isiutNOT_IN_WOS
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