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. 2022 Mar 15;16:785–795. doi: 10.2147/OPTH.S356421

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© 2022 Yeu et al.

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Representative topographical changes in the study group. At baseline (A and B) corneal topography showed marked irregular astigmatism and irregular Placido rings. One month after treatment (C and D), the astigmatism markedly reduced from 6D to 1D and the corneal curvature dramatically improved, while the Mean K changed from 43.3 D to 46.6 D along with concurrent ~ 30° axis deviation.