The changes in corneal shape (Kmax) in the two groups corresponded to the changes in aberrations: the flattening of the steepest keratometric value was highly significant in the CXL-Plus group but not in the CXL group.
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Changes in higher order aberrations after central corneal regularization - a comparative two-year analysis of a semi-automated topography-guided photorefractive keratectomy combined with corneal cross-linking.
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The sentences
The UDVA improvement of 0.34 logMAR in the CXL-Plus group was significant, while the 0.19 logMAR improvement in the CXL group was only very close to statistical significance.