The coma-like aberrations and total HOAs in the 5OZ group were also higher than those in the 6OZ group; the differences were close to being statistically significant (5OZ: Z = −1.957, P = 0.050; 6OZ: Z = −1.921, P = 0.055).
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The Impact of Back Optic Zone Design in Orthokeratology on Visual Performance.
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