Trial Contact Lenses

Multipatient trial contact lenses must meet strict hygiene and documentation standards. Our application digitizes this entire process, ensuring safety, traceability, and full ISO 19979 compliance.

Initial Situation/Problem statement

The Institute of Optometry maintains a large stock of multipatient use trial contact lenses (MUTCL). These lenses are reused across patients during diagnostic examinations, making strict disinfection and documentation procedures essential. Before this project, the cleaning process was recorded manually on paper, resulting in inconsistencies, data gaps, and limited traceability. Additionally, the administrative workload was high, and retrieving historical cleaning information was difficult. To streamline hygiene control and support students during their clinical work, the institute required a digital system to manage lenses and document the entire cleaning process.

Project Goal

The goal was to design and implement a web-based solution that digitizes the management of trial contact lenses. The system enables administrators to register, monitor, and reorder lenses, including their types, geometries, and disinfection methods. Students can document each cleaning step through an intuitive, guided workflow, while the institute benefits from full traceability of lens usage and disinfection cycles in compliance with ISO 19979.

Developed Solution and its benefit

The resulting solution consists of a web application with two main interfaces:

• Admin Interface: Allows registration, editing, and tracking of all lenses, including their type, geometry, and status. Administrators can reorder out-of-stock lenses, manage disinfection types, and view the complete cleaning history of each lens.
• Student Interface: Provides a streamlined workflow to document each cleaning step via QR code scanning. Each step follows the ISO 19979 standard, ensuring complete and consistent documentation.

Benefits

• Digital traceability for every lens.
• Compliance with hygiene standards.
• Reduced administrative workload.
• Increased reliability and data accuracy.
• Real-time overview of stock and lens statuses.

A key part of the solution is the use of unique QR codes printed on each lens container. Scanning a code gives instant access to the corresponding lens record, eliminating manual search, reducing errors, and accelerating the workflow. Once opened, users can document the cleaning process and track lens status changes in real time. The admin dashboard provides an overview of all lenses, their status, and their cleaning history, supporting efficient monitoring and stock management.

Testimonial
«It was great to work with the team on the implementation and practical application of an ISO standard. They overcame technical hurdles and were able to expand their skills.»
Didier Hermann

Key terms

• UI/UX ToolFigma
• Programming languagesJava, Typescript
• Frontend StackNuxt with Vue Framework
• Backend StackSpring Boot
• DatabaseMariaDB
• Deployment PlatformServer at FHNW

Customer

Didier Hermann
4600 Olten
www.fhnw.ch

Team