21 C.F.R. § 886.1300 Afterimage flasher.
Title 21 - Food and Drugs
(a) Identification. An afterimage flasher is an AC-powered light that automatically switches on and off to allow performance of an afterimage test in which the patient indicates the positions of afterimages after the light is off. The device is intended to determine harmonious/anomalous retinal correspondence (the condition in which corresponding points on the retina have the same directional value). (b) Classification. Class II. [55 FR 48441, Nov. 20, 1990]
Title 21: Food and Drugs
PART 886—OPHTHALMIC DEVICES
Subpart B—Diagnostic Devices
§ 886.1300 Afterimage flasher.
