Reported Reactions

Devices › Implant, eye valve

Device brand name · Aqueous shunt

iStent Infinite Trabecular Micro-Bypass System: medical device reports filed with FDA

180 reports name it, 2022–2026. Manufacturer given most often on reports: Glaukos. Product code KYF.

180
device reports naming the brand
0% of all MAUDE reports · about 47 a year
65
reports, 12 months to August 2026
61 in the 12 months before
30%
classified as malfunction
30.3% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

FDA's MAUDE database holds 180 reports that name the brand "iStent Infinite Trabecular Micro-Bypass System" (aqueous shunt), received between September 2022 and August 2026; the manufacturer given most often on reports is Glaukos. Spellings of one product vary from report to report.

65 reports arrived in the 12 months to August 2026, close to the 61 of 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 injury (70%) and malfunction (30%); across all implant, eye valve reports (product code KYF) death is recorded in 0% and malfunction in 30.3%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are break (16.1%), malposition of device (11.1%) and device dislodged or dislocated (6.1%). The patient problems coded most often are intraocular pressure increased, visual impairment and foreign body in patient. 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

0815Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 0Feb 2022: 0Mar 2022: 0Apr 2022: 0May 2022: 0Jun 2022: 0Jul 2022: 0Aug 2022: 0Sep 2022: 1Oct 2022: 2Nov 2022: 1Dec 2022: 02023Jan 2023: 0Feb 2023: 2Mar 2023: 2Apr 2023: 2May 2023: 2Jun 2023: 2Jul 2023: 1Aug 2023: 1Sep 2023: 2Oct 2023: 2Nov 2023: 2Dec 2023: 12024Jan 2024: 4Feb 2024: 2Mar 2024: 1Apr 2024: 1May 2024: 9Jun 2024: 4Jul 2024: 4Aug 2024: 6Sep 2024: 7Oct 2024: 3Nov 2024: 7Dec 2024: 52025Jan 2025: 10Feb 2025: 7Mar 2025: 2Apr 2025: 4May 2025: 1Jun 2025: 4Jul 2025: 5Aug 2025: 6Sep 2025: 3Oct 2025: 15Nov 2025: 6Dec 2025: 12026Jan 2026: 8Feb 2026: 5Mar 2026: 2Apr 2026: 6May 2026: 4Jun 2026: 3Jul 2026: 3Aug 2026: 9

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

032642022: 420222023: 1920232024: 5320242025: 6420252026: 402026

Event type and report source

Event type, as classified on the report

Death0%0
Injury70%126
Malfunction30%54
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%180
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 4,403 reports carrying product code KYF. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Breakthe device broke2916.1%2.1%
Malposition of device2011.1%6.4%
Device dislodged or dislocated116.1%1.8%
Detachment of device or device componentpart of the device came off31.7%0.1%
Obstruction of flow31.7%1.7%
Contamination21.1%0%

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
Intraocular pressure increasedraised pressure in the eye3821.1%
Visual impairmentreduced vision2513.9%
Foreign body in patientpart of a device left in the patient1910.6%
Hyphema179.4%
Inflammationinflammation158.3%
Eye injury126.7%
Adhesion(s)116.1%
Iritis116.1%
Macular edema105.6%
Visual disturbances95%
Corneal edema52.8%
Eye paineye pain52.8%
Hypersensitivity/allergic reaction31.7%
Painpain, site not specified31.7%
Cataractclouding of the eye lens21.1%

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

In context

MeasureiStent Infinite Trabecular Micro-Bypass SystemProduct code KYFAll MAUDE reports
Reports1804,40326,136,888
Share of that pool—4.1%0%
Classified as death, per 1,000 reports009
Classified as injury70%69.5%36.2%
Classified as malfunction30%30.3%62.3%
Filed by the manufacturer100%98.8%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 KYF

BrandReportsLatest 12 monthsClassified as death
Xen 45 Gts1,663880%
Ex-Press Glaucoma Filtration Device666110%
Ex-Press Mini Glaucoma Shunt55200%
Ahmed Glaucoma Valve374290%
Baerveldt Shunt345140%
Xen 45 Gts Australia20700%
Istent Inject Trabecular Micro Bypass System21700%
Istent Trabecular Micro-Bypass52300%

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 iStent Infinite Trabecular Micro-Bypass System reports

How many FDA reports name iStent Infinite Trabecular Micro-Bypass System?

180 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 65 in the latest 12 months.

What kinds of events are reported?

injury (70%) and malfunction (30%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

break (16.1%), malposition of device (11.1%), device dislodged or dislocated (6.1%), detachment of device or device component (1.7%) and obstruction of flow (1.7%). 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 iStent Infinite Trabecular Micro-Bypass System 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.