PMMA Contact Lens Button
Polymethyl methacrylate (PMMA) buttons for lathe-turning rigid gas-permeable contact lenses. Classifies HTS 9001.90.90.00 as unmounted polymer optical elements for vision correction. Standard optician raw material.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If acrylic polymers
Raw PMMA resin Chapter 39; precision optical blanks Chapter 90.
If other contact lens materials
Specific statistical suffixes for different polymer lens types.
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Import Tips & Compliance
• Dk oxygen permeability specs and wettability data for FDA clearance
• Button geometry (diameter, center thickness) confirms lens blank status
• Medical device 510(k) documentation coordinates with customs
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