21 CFR § 886.1450 - Corneal radius measuring device.
---
identifier: "/us/cfr/t21/s886.1450"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 886.1450 - Corneal radius measuring device."
title_number: 21
title_name: "Food and Drugs"
section_number: "886.1450"
section_name: "Corneal radius measuring device."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "H"
subchapter_name: "MEDICAL DEVICES"
part_number: "886"
part_name: "OPHTHALMIC DEVICES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 351, 360, 360c, 360e, 360j, 360 371."
regulatory_source: "52 FR 33355, Sept. 2, 1987, unless otherwise noted."
cfr_part: "886"
---
# 886.1450 Corneal radius measuring device.
(a) *Identification.* A corneal radius measuring device is an AC-powered device intended to measure corneal size by superimposing the image of the cornea on a scale at the focal length of the lens of a small, hand held, single tube penscope or eye gauge magnifier.
(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, only when the device does not include computer software in the unit or topographers.
[55 FR 48442, Nov. 20, 1990, as amended at 59 FR 63013, Dec. 7, 1994; 66 FR 38811, July 25, 2001]