# K960765: Mentor Advent a/B System

- Pathway: 510(k) (Traditional)
- Applicant: Mentor Ophthalmics, Inc.
- Decided: Aug 8, 1996 after 164 days
- Product code: IYO (System, Imaging, Pulsed Echo, Ultrasonic)
- Device class: 2
- Regulation: 21 CFR 892.1560
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K871536 (1987). 1 ancestor in all.
21 later devices descend from it; 2 cite it directly.
0 of 23 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K871536: Ophthasonic a-Scan/ B-Scan, Teknar, Inc. (1987) Summary page 1.

## 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

## Indications for use
MENTOR® Advent™ A/B System is a dual function ultrasonic ophthalmic imaging system. The A-scan is used to measure the axial length of the eye. The system includes various programs for calculating the optical power of the IOL to be implanted during cataract surgery. Anterior depth and lens thickness of the eye are also measured and displayed. The B-scan is used to image the internal structure of the eye including the opaque media and posterior pathology for the purpose of diagnosing pathological or traumatic conditions in the eye.

Source page: https://510kreport.com/device/K960765
Methodology: https://510kreport.com/methodology