21 C.F.R. § 886.1090 Haidlinger brush.
Title 21 - Food and Drugs
(a) Identification. A Haidlinger 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. [55 FR 48441, Nov. 20, 1990, as amended at 59 FR 63012, Dec. 7, 1994; 66 FR 38810, July 25, 2001]
Title 21: Food and Drugs
PART 886—OPHTHALMIC DEVICES
Subpart B—Diagnostic Devices
§ 886.1090 Haidlinger brush.
