Flint Glass Myopia Control Lenses from Japan
Dense flint glass spectacle lenses (index 1.6+) with peripheral defocus zones designed to slow myopia progression in children through simultaneous focus technology. Optically worked with concentric treatment rings invisible to central vision. HTS 9001.40.00.00 as specialized glass corrective lenses.
Duty Rate — Japan → United States
12%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include FDA 510(k) clearance or clinical efficacy studies proving myopia control claims
• Document concentric ring design parameters (2.5mm treatment zone typical) distinguishing from standard lenses
• Declare as 'orthopedic spectacle lenses' if meeting Chapter 90 note 6 for deformity correction