MAUDE Adverse Event Report: ALCON RESEARCH, LLC - IRVINE TECHNOLOGY CENTER CONSTELLATION VISION SYSTEM, ACCESSORY, EMBEDDED LASER; UNIT, PHACOFRAGMENTATION

Catalog Number	8065751450
Medical Device Problem Code	Pressure Problem (3012)
Health Effect - Clinical Codes	Intraocular Pressure Decreased (4468); Choroidal Hemorrhage (4810)
Date of Event	12/13/2025
Type of Reportable Event	Serious Injury
Event or Problem Description
A government agency reported that, during gas-liquid exchange of vitrectomy surgery, there was an unstable intraocular pressure resulted in decreased intraocular pressure and bleeding while using an ophthalmic operating system.Gas liquid exchange was temporarily suspended, and intraocular perfusion adjustment was performed.
Additional Manufacturer Narrative
Investigation including root cause analysis is in progress.A supplemental mdr will be filed as necessary in accordance with 21 cfr 803.56 when additional reportable information becomes available.The manufacturer internal reference number is: (b)(4).
Additional Manufacturer Narrative
Additional information was provided in sections h.6 and h.11.Service history was reviewed for the system.There was no service record (relevant to the reported event), found.All manufacturer¿s surgical systems are verified to meet specifications after installation and customer-initiated service (in accordance with the applicable per procedure).Based on the information obtained, the root cause of the reported event is inconclusive.A non-conformance-based review of the serial number was performed and did not reveal any potential contributing factors to the reported complaint.A manufacturing device history record (dhr) review was performed prior to product release to ensure that the product was manufactured in compliance with the device master record.Based on the assessment, the product met release criteria.A review for ¿complaints reported against this serial number¿ was performed.No similar complaints were reported for the product serial under investigation.Based on the information obtained, the root cause of the reported event(s) are inconclusive.Manufacturer will continue to monitor data for evidence of adverse trending and take further action, as appropriate.The manufacturer internal reference number is: (b)(4).

• Brand Name: CONSTELLATION VISION SYSTEM, ACCESSORY, EMBEDDED LASER
• Common Device Name: UNIT, PHACOFRAGMENTATION
• Manufacturer (Section D): ALCON RESEARCH, LLC - IRVINE TECHNOLOGY CENTER; 15800 alton parkway; irvine CA 92618
• Manufacturer (Section G): ALCON RESEARCH, LLC - IRVINE TECHNOLOGY CENTER; 15800 alton parkway; irvine CA 92618
• Manufacturer Contact: jonathan schlech ; 6201 south freeway; mail stop ab2-6; fort worth, TX 76134 ; 8007579780
• MDR Report Key: 24221970
• Report Number: 2028159-2026-00129
• Device Sequence Number: 8196960
• Product Code: HQC
• UDI-Device Identifier: 00380657514502
• UDI-Public: (01)00380657514502(17)310828(11)210830(10)1426L1
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: K101285
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign
• Initial Reporter Occupation: Administrator/Supervisor
• Type of Report: Initial,Followup
• Report Date (Section B): 03/06/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Catalogue Number: 8065751450
• Device Lot Number: 1426L1
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 01/08/2026
• Supplement Date Received by Manufacturer: 02/10/2026
• Initial Report FDA Received Date: 01/30/2026
• Supplement Report FDA Received Date: 03/06/2026
• Date Device Manufactured: 08/30/2021
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Other; Required Intervention
• Patient Age: 53 YR
• Patient Sex: Female