Night-wear orthokeratology (ortho-k) lenses are rigid gas-permeable contact lenses worn overnight to temporarily reshape the cornea and correct myopia. With childhood myopia prevalence exceeding 30% in East Asia and >25% in North America, ortho-k has evolved into a clinically validated myopia-control modality valued by parents and eyecare professionals alike. The Night Wear Orthokeratology Lenses market size surpassed USD 1.2 billion in 2025, underpinned by a robust growth outlook as global myopia rates are projected to reach 4.8 billion by 2030. Our market forecast indicates a 9–11% CAGR through 2033, propelled by regulatory approvals for faster high-fluence lens materials, rising consumer preference for non-surgical vision correction, and widening insurance reimbursement in China, Japan, and parts of Europe. Scope encompasses overnight ortho-k lenses (spherical, toric, and multifocal designs) sold via eye hospitals, optometry chains, and e-commerce, with industry expansion concentrated in Asia-Pacific and North American specialty practices.