Fig. 4From: Efficacy of small back optic zone design on myopia control for corneal refractive therapy (CRT): a one-year prospective cohort studyReceiver operating characteristic (ROC) curves for predicting rapid (> 0.2 mm/year) or slow (≤ 0.2 mm/year) axial elongation. HOA, high-order aberration; TZ, treatment zone; Total, equation combining the Zernike defocus coefficient, HOA and TZ sizeBack to article page