Reported Reactions

Devices › Implant, eye valve

Device brand name · Implant eye valve

Xen 45 Gts Australia: medical device reports filed with FDA

207 reports name it, 2018–2025. Manufacturer given most often on reports: Allergan Irvine. Product code KYF.

207
device reports naming the brand
0% of all MAUDE reports · about 26 a year
0
reports, 12 months to August 2026
4 in the 12 months before
8.2%
classified as malfunction
30.3% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

207 medical device reports received by FDA name the brand "Xen 45 Gts Australia" (implant eye valve); the manufacturer given most often on reports is Allergan Irvine; received from August 2018 to June 2025. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

0 reports arrived in the 12 months to August 2026, against 4 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 injury (91.8%) and malfunction (8.2%); 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 complete blockage (16.4%), material twisted/bent (7.2%) and migration (6.8%). The patient problems coded most often are intraocular pressure increased, eye injury and erosion. 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

0816Sep 2021: 0Oct 2021: 4Nov 2021: 5Dec 2021: 52022Jan 2022: 2Feb 2022: 2Mar 2022: 5Apr 2022: 4May 2022: 5Jun 2022: 12Jul 2022: 2Aug 2022: 2Sep 2022: 2Oct 2022: 16Nov 2022: 1Dec 2022: 22023Jan 2023: 1Feb 2023: 0Mar 2023: 0Apr 2023: 0May 2023: 0Jun 2023: 0Jul 2023: 0Aug 2023: 1Sep 2023: 0Oct 2023: 1Nov 2023: 0Dec 2023: 12024Jan 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: 3Feb 2025: 0Mar 2025: 0Apr 2025: 0May 2025: 0Jun 2025: 1Jul 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

028552018: 820182019: 4220192020: 5420202021: 4020212022: 5520222023: 420232025: 42025

Event type and report source

Event type, as classified on the report

Death0%0
Injury91.8%190
Malfunction8.2%17
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%207
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
Complete blockage3416.4%9.2%
Material twisted/bent157.2%1.2%
Migrationthe device moved from where it was placed146.8%3.4%
Malposition of device104.8%6.4%
Off-label use94.3%0.6%
Device appears to trigger rejection83.9%2.5%
Fracturea broken bone62.9%2.3%
Physical resistance/sticking41.9%7.8%
Improper or incorrect procedure or method31.4%0.6%
Partial blockage21%1.3%
Breakthe device broke10.5%2.1%
Difficult or delayed positioning10.5%0.1%
Mechanical jam10.5%2.7%
Positioning failure10.5%0.5%

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 eye5627.1%
Eye injury5426.1%
Erosion2914%
Endophthalmitisinfection inside the eye209.7%
Fibrosis209.7%
Loss of vision146.8%
Failure of implant104.8%
Hemorrhage/blood loss/bleeding94.3%
Intraocular infection94.3%
Uveitis73.4%
Hyphema62.9%
Keratitis62.9%
Glaucomaraised pressure in the eye52.4%
Cataractclouding of the eye lens31.4%
Fluid discharge31.4%

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

In context

MeasureXen 45 Gts AustraliaProduct code KYFAll MAUDE reports
Reports2074,40326,136,888
Share of that pool—4.7%0%
Classified as death, per 1,000 reports009
Classified as injury91.8%69.5%36.2%
Classified as malfunction8.2%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%
iStent Infinite Trabecular Micro-Bypass System180650%
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 Xen 45 Gts Australia reports

How many FDA reports name Xen 45 Gts Australia?

207 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?

injury (91.8%) and malfunction (8.2%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

complete blockage (16.4%), material twisted/bent (7.2%), migration (6.8%), malposition of device (4.8%) and off-label use (4.3%). 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 Xen 45 Gts Australia 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.