Digitally Optimized Orthokeratology Lens Design for Slowing Myopia Progression: A Randomized Controlled Clinical Trial

INTERVENTION: Experimental Group (Combined Optimization Design Group 1):Digitally Customized Orthokeratology Lens—Optimized Design 1;Experimental Group (Combined Optimization Design Group 2):Digitally Customized Orthokeratology Lens—Optimized Design 2;Control Group (Conventional Optimization Design Group):Digitally Customized Orthokeratology Lens—Conventional Optimized Design; CONDITION: Myopia PRIMARY OUTCOME: axial length; INCLUSION CRITERIA: 1.Aged 8–15 years, inclusive, with no restriction on sex; 2.Both eyes have a myopic refractive error between ‐4.00 D and ‐1.00 D, astigmatism =1.50 D, and anisometropia <1.00 D; 3.Able to complete the 1‐year follow‐up; 4.Able to understand the purpose of the trial, voluntarily agree to participate, and provide written informed consent signed by both the participant and their legal guardian.