Fig. 4From: Refractive corneal inlay for presbyopia in emmetropic patients in Asia: 6-month clinical outcomesContrast sensitivity test results before and after Flexivue Microlens inlay implantation. X-axis number represents the spatial frequency (cycle per degree). Significant differences (p < 0.05) between preoperative and 1-month values marked as ¥, and comparisons with 6-month values are marked as *Back to article page