9018.90.20.00/Corneal Topographer Objective Lens/Japan

Corneal Topographer Objective Lens from Japan

Placido disc illumination optics for corneal surface mapping. Classifies under HTS 9018.90.20.00 as optical component of sight-testing videokeratography. Generates elevation maps for ectasia detection.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• Specify ring pattern count and illumination wavelength for classification

• Require software validation documentation for topographic algorithms

• Separate from computer interface components to maintain optical classification