# K903666: Ophthasonic a/P Iii

- Pathway: 510(k) (Traditional)
- Applicant: Teknar, Inc.
- Decided: Nov 19, 1990 after 97 days
- Product code: HPY (Unit, Electrolysis, Battery-Powered, Ophthalmic)
- Device class: 1
- Regulation: 21 CFR 886.4250
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
18 later devices descend from it; 1 cites it directly.
0 of 19 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K032956: Accusonic a-Scan  Model, 24-4000 (2003), 17 descendants of its own
- K082891: Lenstar, Model LS900 (2009), 14 descendants of its own
- K101182: Iolmaster 500 (2010), 10 descendants of its own
- K122418: Iolmaster 500 (2013), 9 descendants of its own
- K143275: IOLMaster700 (2015), 4 descendants of its own

Source page: https://510kreport.com/device/K903666
Methodology: https://510kreport.com/methodology