510(k) Report

510(k) · Cleared

Cleared

HP-Oct (HP-Oct)

K231760510(k) TraditionalCleared Mar 8, 2024266-day reviewClass II21 CFR 886.1850

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Cylite Pty., Ltd. · HJO Biomicroscope, Slit-Lamp, Ac-Powered

Cleared on Mar 8, 2024 as substantially equivalent to K181534 (Carl Zeiss Meditec, Inc., 2019) after a 266-day review. Its family tree reaches back 10 generations to 2002. 1 later device descends from it.

Decided
Mar 8, 2024
Review
266 days
Class
Class II
Product code
HJO
Recalls
None
Predicates
1

Its longest line of descent runs back 10 generations to K012727 (2002). 26 ancestors in all, the oldest K946058 (1995). 1 later device descends from it, 1 citing it directly.

  1. Root · 10 generations backK012727 Humphrey OCT3Carl Zeiss Ophthalmic Systems, Inc. · 2002
  2. 6 generations between
  3. 3 generations backK150977 Cirrus HD-OctCarl Zeiss Meditec, Inc. · 2015
  4. 2 generations backK161194 PLEX Elite 9000 SS-OCTCarl Zeiss Meditec, Inc. · 2016 · Recalled
  5. 1 generation backK181534 Cirrus HD-OctCarl Zeiss Meditec, Inc. · 2019 · Recalled
  6. This deviceK231760 HP-Oct (HP-Oct)Cylite Pty., Ltd. · 2024
  7. Descendant · cites it directly · 0 of its ownK252633 Unity DX (Udx)Cylite Pty., Ltd. · 2025
Show all 10 generations
  1. Root · 10 generations backK012727 Humphrey OCT3Carl Zeiss Ophthalmic Systems, Inc. · 2002
  2. 9 generations backK030433 Stratusoct with RNFL Normative DatabaseCarl Zeiss Meditec, Inc. · 2003 · Recalled
  3. 8 generations backK033123 Stratusoct with RNFL & Macula Normative DatabaseCarl Zeiss Meditec, Inc. · 2004 · Recalled
  4. 7 generations backK063343 Bioptigen Spectral Domain Ophthalmic Imaging SystemBioptigen, Inc. · 2006
  5. 6 generations backK071250 CA, Model: CamOptovue, Inc. · 2007
  6. 5 generations backK101505 Rtvue Model Rtvue 100Optovue, Inc. · 2010 · Recalled
  7. 4 generations backK111157 CIRRUS HD-OCT WITH RETINAL NERVE FIBER LAYER, MACULAR, OPTIC NERVE…Carl Zeiss Meditec, Inc. · 2012
  8. 3 generations backK150977 Cirrus HD-OctCarl Zeiss Meditec, Inc. · 2015
  9. 2 generations backK161194 PLEX Elite 9000 SS-OCTCarl Zeiss Meditec, Inc. · 2016 · Recalled
  10. 1 generation backK181534 Cirrus HD-OctCarl Zeiss Meditec, Inc. · 2019 · Recalled
  11. This deviceK231760 HP-Oct (HP-Oct)Cylite Pty., Ltd. · 2024

Most influential descendants

Showing 1 of 1 · See all
  • K252633Unity DX (Udx)Cylite Pty., Ltd. · 2025 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−10K012727Humphrey OCT3Carl Zeiss Ophthalmic Systems, Inc.2002—
−9K030433Stratusoct with RNFL Normative DatabaseCarl Zeiss Meditec, Inc.20031
−8K033123Stratusoct with RNFL & Macula Normative DatabaseCarl Zeiss Meditec, Inc.20041
−7K063343Bioptigen Spectral Domain Ophthalmic Imaging SystemBioptigen, Inc.2006—
−6K071250CA, Model: CamOptovue, Inc.2007—
−5K101505Rtvue Model Rtvue 100Optovue, Inc.20101
−4K111157CIRRUS HD-OCT WITH RETINAL NERVE FIBER LAYER, MACULAR, OPTIC NERVE HEAD, and…Carl Zeiss Meditec, Inc.2012—
−3K150977Cirrus HD-OctCarl Zeiss Meditec, Inc.2015—
−2K161194PLEX Elite 9000 SS-OCTCarl Zeiss Meditec, Inc.20161
−1K181534Cirrus HD-OctCarl Zeiss Meditec, Inc.20192
0 (this device)K231760HP-Oct (HP-Oct)Cylite Pty., Ltd.2024—
+1K252633Unity DX (Udx)Cylite Pty., Ltd.2025—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199520
199810
200110
200220
200310
200420
200510
200630
200710
200910
201010

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202510
FIG. 1 — Lineage of K231760, 2002–2025Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in HJO? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new HJO device

  1. #1 K253834 Visuref 600score 13.1 · 8 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K181534Cirrus HD-Oct
Summary page 4
…oduct Code: OBO 2. Predicate Device Company: Carl Zeiss Meditec, Inc. Device: Cirrus HD-OCT 5000 (K181534) The subject device and predicate device are both intended for non-contact imaging and analysis of ocular structures. Both devic…
Carl Zeiss Meditec, Inc.20192

Also cleared against K181534: 2 other devices →

What descends from it? (1)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K252633Unity DX (Udx)Cylite Pty., Ltd.20250

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 22 years and passes through 5 companies; a new generation was cleared every 2.3 years on median.
  • 6 of the 26 ancestors have a recall of any class.
  • Of its descendants, K252633 (Cylite Pty., Ltd., 2025) has gone furthest, with 0 descendants of its own.
  • 2 other devices also cite its predicate K181534.

How does its category compare?

All HJO devices

HJO Biomicroscope, Slit-Lamp, Ac-Powered: FDA decisions, review times, recalls and adverse event reports over 20 years. 2024, this device’s year, is highlighted.

FDA decisions per year · HJO

1in 2024

2007: 12008: 42009: 32010: 52011: 22013: 22014: 102015: 22016: 52017: 92018: 22020: 12022: 12024: 12026 (partial year): 2
2007high 10 (2014) · low 0 (2012)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · HJO

232in 2017

2008: 117 days median2009: 91 days median2010: 121 days median2014: 196 days median2016: 243 days median2017: 232 days median
2007high 243 (2016) · low 91 (2009)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · HJO

1in 2018

2013: 22015: 22018: 1
2007high 2 (2013) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · HJO

20in 2025

2007: 12008: 32009: 32010: 22011: 52012: 72013: 162014: 42015: 82016: 152017: 152018: 112019: 132020: 192021: 142022: 62023: 182024: 182025: 20
2007high 20 (2025) · low 1 (2007)2025

MAUDE reports naming product code HJO, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20071—01
2008411703
200939103
2010512102
20112—05
20120—07
20132—216
20141019604
20152—28
20165243015
20179232015
20182—111
20190—013
20201—019
20210—014
20221—06
20230—018
20241—018
20250—020
20262—0—

What is it indicated for?

The HP-OCT™ instrument is a non-contact ophthalmic imaging and analysis device. It is indicated for visualization of the posterior segment of the eye.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K231760: HP-Oct (HP-Oct).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K231760

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026