Phoropter Lens Set
A set of trial lenses used in phoropters for refractive error testing during eye examinations. This optical instrument and its accessories fall under HTS 9018.90.20.00 as other optical appliances for sight-testing in medical sciences. It enables precise vision correction measurements.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If image intensifier type for surgical visualization
Surgical optical instruments with image intensification classify under specific subheading 9018.50.
If for non-medical industrial precision measuring
Optical measuring instruments not dedicated to medical use fall under Chapter 90 measuring instruments.
If mass-produced spectacle trial frames
Mechano-therapy appliances and trial spectacle frames have dedicated provisions.
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Import Tips & Compliance
• Verify FDA registration for optical medical devices and include 510(k) clearance documentation
• Label with precise lens powers and ensure sterilization certificates if required
• Avoid misclassification as general optical goods under Chapter 90 headings 9001-9004
Related Products under HTS 9018.90.20.00
Slit Lamp Biomicroscope
High-magnification optical instrument using a narrow beam of light for detailed anterior segment eye examination. Classified in HTS 9018.90.20.00 as other optical appliances for medical sight-testing. Essential for diagnosing corneal and lens abnormalities.
Ophthalmic Trial Lens Kit
Portable set of spherical, cylindrical, and prism trial lenses for refraction testing in optometry. Falls under HTS 9018.90.20.00 as optical accessories for sight-testing instruments. Used to determine eyeglass prescriptions accurately.
Retinoscope Optical Accessory
Streak retinoscope with cobalt blue filter and fixation target for objective refraction. HTS 9018.90.20.00 covers this as other optical sight-testing appliance. Detects refractive errors without patient response.
Keratometer Measurement Head
Precision optical attachment measuring corneal curvature for contact lens fitting. Classifies under HTS 9018.90.20.00 as optical appliance part for sight-testing. Provides dioptric measurements of corneal astigmatism.
Gonioscope Lens
Contact lens with mirrored surfaces for viewing anterior chamber angle via slit lamp. HTS 9018.90.20.00 applies to this specialized optical diagnostic accessory. Essential for glaucoma angle assessment.
Fundus Camera Lens Adapter
Optical interface converting standard cameras for retinal fundus photography. Falls under HTS 9018.90.20.00 as sight-testing optical accessory. Enables high-resolution retinal vessel documentation.