System Architecture
TEFLA® is engineered as an integrated tele-optometry ecosystem combining calibrated optical hardware, controlled clinical interfaces, and secure cloud connectivity. The architecture is designed to maintain consistency across remote examination environments while supporting clinical oversight and traceable digital outputs.
System Layers
- Device Layer: TEFLA hardware and on-device optotype presentation
- Application Layer: Attender Mobile Application for patient onboarding and session handling
- Clinical Layer: Doctor Web Portal for exam control, refraction guidance, and prescription generation
- Communication Layer: Secure video consultation and real-time control signals
- Cloud Layer: Data synchronisation, storage, and continuity of records
Core Components
- TEFLA Hardware Device (portable optics + high-resolution display)
- Attender Mobile Application (Android)
- Doctor Web-Based Clinical Portal
- Secure Video Consultation Interface
- Cloud Infrastructure for synchronisation and record availability
Optical & Display System
TEFLA incorporates a calibrated digital display and optical pathway designed to support controlled optotype presentation. The system enables consistent testing independent of room size constraints, supporting deployment in clinics, outreach settings, and home-care environments.
Interpupillary Distance (IPD) Adjustment
The device supports mechanical IPD adjustment between 55 mm and 75 mm via a precision pinion-gear mechanism. Adjust smoothly within the specified range only. Forcing movement beyond the range may compromise alignment.
Power & Battery
TEFLA includes an internal rechargeable battery designed for extended field use. Charge using the supplied adapter only. For operational guidance, follow the Safety and Maintenance sections of this manual.
Connectivity & Synchronisation
TEFLA relies on stable internet connectivity for real-time session control, consultation continuity, and secure record synchronisation. Where connectivity is unstable, examinations should not be initiated to avoid incomplete sessions.
Data Handling (High-Level)
Patient records, prescriptions, and session metadata are handled within the TEFLA ecosystem for authorised access. Users must comply with applicable privacy, consent, and telemedicine regulations relevant to their jurisdiction.