{"data":{"id":"us/21-cfr-886.1930","jurisdiction":"us","citation":"21 CFR 886.1930","heading":"Tonometer and accessories.","body":"(a) Identification. A tonometer and accessories is a manual device intended to measure intraocular pressure by applying a known force on the globe of the eye and measuring the amount of indentation produced (Schiotz type) or to measure intraocular tension by applanation (applying a small flat disk to the cornea). Accessories for the device may include a tonometer calibrator or a tonograph recording system. The device is intended for use in the diagnosis of glaucoma.\n(b) Classification. Class II.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER H—MEDICAL DEVICES","PART 886—OPHTHALMIC DEVICES","Subpart B—Diagnostic Devices"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"d66c5b7f03925739812ac905a999ca44c81082580235d290b1c69add264519e5","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-886.1925","next":"us/21-cfr-886.1940"},"notice":"GroundRules: Original legal text. Not legal advice."}