yourstate.us
21 CFR 886.1340

§ 886.1340 Haploscope.

United States · 21 CFR — Food and Drugs · Status: effective

Get this as JSONEmbed this
Cite this
Citation
21 CFR 886.1340, § 886.1340 Haploscope, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/90909
Permanent ID
ys:prov:90909@1
SHA-256
a94f851118c8c96fdfb6751d3f810fc1f3fe87ae65b6fc1d8ece475e16fbe696

The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.

Full text

(a) Identification. A haploscope is an AC-powered device that consists of two movable viewing tubes, each containing a slide carrier, a low-intensity light source for the illumination of the slides, and a high-intensity light source for creating afterimages. The device is intended to measure strabismus (eye muscle imbalance), to assess binocular vision (use of both eyes to see), and to treat suppression and amblyopia (dimness of vision without any apparent disease of the eye). (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.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.