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Federal regulations · Through 2026-08-25 · Newer source version available

21 CFR 886.1090: Haidinger brush.

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Where this section sits in the code
  1. Title 21—Food and Drugs
  2. CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES
  3. SUBCHAPTER H—MEDICAL DEVICES
  4. PART 886—OPHTHALMIC DEVICES
  5. Subpart B—Diagnostic Devices

(a) Identification. A Haidinger brush is an AC-powered device that provides two conical brushlike images with apexes touching which are viewed by the patient through a Nicol prism and intended to evaluate visual function. It may include a component for measuring macular integrity.

(b) Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter, subject to the limitations in § 886.9.

Collected 2026-08-27T02:24:47Z. Source file · JSON

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