Abstract
Building upon the positive defocus strategy for myopia control, this study proposes an innovative optical design that integrates a microlens array with a metasurface to effectively regulate focal positioning and adapt to multi- wavelength environments within a compact form factor. By introducing +3.5D positive defocus and +2.5D longitudinal chromatic aberration, the design aims to modulate axial eye growth through combined multi-point defocus and chromatic cues. This system is expected to provide both retinal feedback across different wavelengths and therapeutic effects through spatially distributed defocus to suppress axial elongation. By combining dispersion modulation with multifocal functionality, the design simulates the complex lighting conditions of outdoor environments, addressing the limitations of current single-condition myopia control lenses. It offers an effective approach to suppress early myopia progression and is expected to further reduce axial elongation by approximately 20%.