Zeiss Humphrey Visual Field Analyzer from Canada
The Zeiss Humphrey Field Analyzer (HFA) performs automated perimetry testing to map visual field defects indicative of glaucoma, optic nerve damage, and neurological conditions affecting vision. Classified under HTS 9018.50.00.00 as an ophthalmic sight-testing instrument. Gold standard for quantitative visual field assessment in clinical practice.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide extensive clinical validation data including sensitivity/specificity against Goldmann perimetry
• Include normative database details for age-matched population comparisons
• Document software validation for progression analysis algorithms and reliability indices