Reported Reactions

Devices › Intraocular lens

Device brand name · Intraocular lens

Ks-Ni2: medical device reports filed with FDA

164 reports name it, 2014–2021. Manufacturer given most often on reports: Staar Surgical. Product code HQL.

164
device reports naming the brand
0% of all MAUDE reports · about 14 a year
0
reports, 12 months to August 2026
0 in the 12 months before
97.6%
classified as malfunction
52.8% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

FDA's MAUDE database holds 164 reports that name the brand "Ks-Ni2" (intraocular lens), received between July 2014 and November 2021; the manufacturer given most often on reports is Staar Surgical. Spellings of one product vary from report to report.

0 reports arrived in the 12 months to August 2026, and none in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are malfunction (97.6%) and injury (2.4%); across all intraocular lens reports (product code HQL) death is recorded in 0% and malfunction in 52.8%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are device operates differently than expected (11.6%), sticking (7.3%) and mechanical jam (6.1%). The patient problems coded most often are corneal edema, loss of vision and visual disturbances. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Reports by month, five years

023Sep 2021: 0Oct 2021: 0Nov 2021: 3Dec 2021: 02022Jan 2022: 0Feb 2022: 0Mar 2022: 0Apr 2022: 0May 2022: 0Jun 2022: 0Jul 2022: 0Aug 2022: 0Sep 2022: 0Oct 2022: 0Nov 2022: 0Dec 2022: 02023Jan 2023: 0Feb 2023: 0Mar 2023: 0Apr 2023: 0May 2023: 0Jun 2023: 0Jul 2023: 0Aug 2023: 0Sep 2023: 0Oct 2023: 0Nov 2023: 0Dec 2023: 02024Jan 2024: 0Feb 2024: 0Mar 2024: 0Apr 2024: 0May 2024: 0Jun 2024: 0Jul 2024: 0Aug 2024: 0Sep 2024: 0Oct 2024: 0Nov 2024: 0Dec 2024: 02025Jan 2025: 0Feb 2025: 0Mar 2025: 0Apr 2025: 0May 2025: 0Jun 2025: 0Jul 2025: 0Aug 2025: 0Sep 2025: 0Oct 2025: 0Nov 2025: 0Dec 2025: 02026Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0

Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

By year received

027532014: 2820142015: 5320152016: 3620162017: 1420172018: 1020182019: 920192020: 620202021: 82021

Event type and report source

Event type, as classified on the report

Death0%0
Injury2.4%4
Malfunction97.6%160
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%164
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 79,755 reports carrying product code HQL. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Device operates differently than expectedthe device behaved unexpectedly1911.6%1%
Sticking127.3%1.1%
Mechanical jam106.1%0.6%
Partial blockage95.5%0%
Activation, positioning or separation problem63.7%0.1%
Entrapment of device53%0.1%
Mechanical problema mechanical problem21.2%0.2%
Positioning failure21.2%0.3%
Torn material21.2%1.5%
Bent10.6%0.5%
Breakthe device broke10.6%9.8%
Device contamination with chemical or other material10.6%1.1%
Device dislodged or dislocated10.6%1.1%
Device displays incorrect message10.6%0%
Difficult or delayed positioning10.6%0.3%
Malposition of device10.6%1.2%
Material deformation10.6%0.5%
Unintended ejection10.6%0.1%

FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.

Patient problems coded

Patient problem (FDA code)ReportsShare
Corneal edema10.6%
Loss of vision10.6%
Visual disturbances10.6%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureKs-Ni2Product code HQLAll MAUDE reports
Reports16479,75526,136,888
Share of that pool—0.2%0%
Classified as death, per 1,000 reports009
Classified as injury2.4%42.8%36.2%
Classified as malfunction97.6%52.8%62.3%
Filed by the manufacturer100%98.2%94.9%

Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Other brands with product code HQL

BrandReportsLatest 12 monthsClassified as death
Acrysof9,16100%
Tecnis Simplicity5,3101,2170%
Tecnis Iol5,9017150%
Tecnis3,08200.1%
Tecnis Itec Preloaded 1-Piece Iol2,43500%
AcrySof IQ Natural Singlepiece IOL2,4241180%
Clareon IOL with the AutonoME Delivery System2,2768640%
Tecnis 1-Piece2,25900%
enVista Intraocular Lens2,163360%
Hydroview Intraocular Lens2,06700%
Acrysof Restor3,80100%
Acrysof Iq Toric1,90500%
AcrySof Multipiece IOL1,6192980%
Silicone Advanced Optic-Violet Shield1,41300%
AcrySof Singlepiece IOL1,2111310%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."

Questions about Ks-Ni2 reports

How many FDA reports name Ks-Ni2?

164 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 0 in the latest 12 months.

What kinds of events are reported?

malfunction (97.6%) and injury (2.4%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

device operates differently than expected (11.6%), sticking (7.3%), mechanical jam (6.1%), partial blockage (5.5%) and activation, positioning or separation problem (3.7%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (100%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Ks-Ni2 was at fault?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."

How do I report a problem with a medical device?

Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.