Our results indicate that the overall mean C0 component of keratometric astigmatism ranges around 0.20 dpt (95% confidence interval: -1.6 to 2.3 dpt) whereas the C45 component ranges around -0.02 dpt (95% confidence interval: -1.1 to 1.0 dpt) with a slight trend to positive values for OD and negative values for OS.
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Vector analysis of corneal astigmatism in cataractous eyes based on IOLMaster 700 biometry.
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The sentences
The Sign Rank Test for multivariate paired samples showed a highly significant difference between bivariate K and TK and between K and FV in both subsets (OS and OD), and in the combined dataset for both eyes (again taking account of the reflection of the OS data) (P < 0.001).