> ## Content Index
> Fetch the complete content index at: https://www.fdaweb.com/llms.txt
> Use this file to discover other available public pages before exploring further.

# FDA Reclassifies Diurnal Pattern Recorders as Class 2
- URL: https://www.fdaweb.com/fda-reclassifies-diurnal-pattern-recorders-as-class-2/
- Published: 2016-05-31T12:00:00.000Z
- Updated: 2026-09-14T21:06:02.000Z
- Author: David McFarland
- Tags: FDA Policy/General, #legacy-id-D5135796

*Federal Register* Final Order: FDA is classifying the diurnal pattern recorder system into Class 2 (special controls). FDA believes that the special controls, in addition to general controls, address identified risks and provide reasonable assurance of safety and effectiveness. The nonimplantable, prescription devices use a telemetric sensor to detect changes in ocular dimension for monitoring diurnal patterns of intraocular pressure fluctuations. To view this notice, click [here](https://www.gpo.gov/fdsys/pkg/FR-2016-05-31/pdf/2016-12683.pdf?ref=fdaweb.com).