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Title: Evaluation of higher order ocular aberrations in patients with keratoconus
Authors: Lim, L.
Wei, R.H.
Chan, W.K.
Tan, D.T.H. 
Issue Date: Oct-2007
Citation: Lim, L.,Wei, R.H.,Chan, W.K.,Tan, D.T.H. (2007-10). Evaluation of higher order ocular aberrations in patients with keratoconus. Journal of Refractive Surgery 23 (8) : 825-828. ScholarBank@NUS Repository.
Abstract: PURPOSE: To describe higher order ocular aberrations in eyes with keratoconus. METHODS: Prospective, observational, case-control study comparing higher order ocular aberrations in patients with keratoconus with control subjects with myopia. RESULTS: One hundred sixteen patients with keratoconus were recruited. Data were analyzed in 35 keratoconus eyes, 38 keratoconus suspect eyes, and 166 right eyes with myopia. Mean total higher order root-mean-square (RMS) values (3rd to 5th order) were 1.73±0.71 μm in eyes with keratoconus, 0.94±0.66 μm in eyes with keratoconus suspect, and 0.49±0.16 μm in control eyes. Keratoconus eyes had greater total higher order RMS, 3rd to 5th order RMS, and RMS for all Zernike terms than those in the control group (P<.001). CONCLUSIONS: Keratoconus and keratoconus suspect eyes had significantly larger higher order aberrations in total higher order RMS and 3rd order RMS than control eyes.
Source Title: Journal of Refractive Surgery
ISSN: 1081597X
Appears in Collections:Staff Publications

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