510(k) Report

510(k) · Cleared

Cleared

Tono-Vera® Tonometer and Ocu-Dot® Tonometer Probes (16305, 16306, 16318)

K233516510(k) TraditionalCleared May 1, 2024182-day reviewClass II21 CFR 886.1930

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

Reichert, Inc. · HKY Tonometer, Manual

Cleared on May 1, 2024 as substantially equivalent to K153694 (Icare Finland OY, 2016) after a 182-day review. Its family tree reaches back 4 generations to 1995.

Decided
May 1, 2024
Review
182 days
Class
Class II
Product code
HKY
Recalls
None
Predicates
1

Its longest line of descent runs back 4 generations to K943939 (1995). 8 ancestors in all. No later device cites it as a predicate yet.

Other ancestors, by year cleared 2006: 1 other ancestor2003: 1 other ancestor1999: 1 other ancestor1996: 1 other ancestorK943939 · Non-Contact Tonometer T-2 · Canon, Inc. · 1995K021937 · TGDC-01 Pra · Truevision Instruments · 2002K063873 · Icare Tonometer TA01I · Tiolat OY · 2007K153694 · Icare ic100 · Icare Finland OY · 20161995200020052010201520202025
Other ancestors, by generation 3 generations back: 3 other ancestors4 generations back: 1 other ancestor K153694 · Icare ic100 · Icare Finland OY · 2016K063873 · Icare Tonometer TA01I · Tiolat OY · 2007K021937 · TGDC-01 Pra · Truevision Instruments · 2002K943939 · Non-Contact Tonometer T-2 · Canon, Inc. · 19950
  1. Root · 4 generations backK943939 Non-Contact Tonometer T-2Canon, Inc. · 1995
  2. 3 generations backK021937 TGDC-01 PraTruevision Instruments · 2002
  3. 2 generations backK063873 Icare Tonometer TA01ITiolat OY · 2007
  4. 1 generation backK153694 Icare ic100Icare Finland OY · 2016
  5. This deviceK233516 Tono-Vera® Tonometer and Ocu-Dot® Tonometer Probes (16305, 16306…Reichert, Inc. · 2024
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−4K943939Non-Contact Tonometer T-2Canon, Inc.1995—
−3K021937TGDC-01 PraTruevision Instruments2002—
−2K063873Icare Tonometer TA01ITiolat OY2007—
−1K153694Icare ic100Icare Finland OY2016—
0 (this device)K233516Tono-Vera® Tonometer and Ocu-Dot® Tonometer Probes (16305, 16306, 16318)Reichert, Inc.2024—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199610
199910
200310
200610
FIG. 1 — Lineage of K233516, 1995–2024Source: 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 HKY? 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 HKY device

  1. #1 K241447 iCare ST500 (TA04)score 9.6 · 6 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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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
*K153694Icare ic100
Summary page 5
…s 21 CFR 807.92(a)(3) Predicate # Predicate Trade Name (Primary Predicate is listed first) Product Code K153694 Icare Ic100 HKY Device Description Summary…
Icare Finland OY2016—

Also cleared against K153694: 1 other device →

What descends from it?

No later submission names this one as a predicate yet.

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 29 years and passes through 5 companies; a new generation was cleared every 8.0 years on median.
  • None of the 8 ancestors has a recall.
  • 1 other device also cites its predicate K153694.

How does its category compare?

All HKY devices

HKY Tonometer, Manual: FDA decisions, review times, recalls and adverse event reports over 20 years. 2024, this device’s year, is highlighted.

FDA decisions per year · HKY

3in 2024

2007: 22008: 12010: 12013: 12014: 32015: 22016: 32017: 22018: 32019: 12020: 22021: 12022: 22023: 12024: 3
2007high 3 (2014) · low 0 (2009)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · HKY

128in 2024

2014: 123 days median2016: 226 days median2018: 77 days median2024: 128 days median
2007high 226 (2016) · low 77 (2018)2026

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

Recalls per year · HKY

2in 2014

2014: 2
2007high 2 (2014) · low 0 (2007)2026

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

Adverse event reports per year · HKY

1in 2019

2010: 22013: 12014: 32015: 12016: 22019: 1
2007high 3 (2014) · low 0 (2007)2025

MAUDE reports naming product code HKY, 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
20072—00
20081—00
20090—00
20101—02
20110—00
20120—00
20131—01
2014312323
20152—01
2016322602
20172—00
201837700
20191—01
20202—00
20211—00
20222—00
20231—00
2024312800
20250—00
20260—0—

What is it indicated for?

The Tono-Vera® Tonometer and Ocu-Dot® Tonometer Probes is intended to be used for the measurement of intraocular pressure of the human eye.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K233516: Tono-Vera® Tonometer and Ocu-Dot® Tonometer Probes (16305, 16306, 16318).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K233516

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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