A procedural guide to the modification of a Canon AutoRef R-1 for use as a continuously recording optometer.

Area of Science:

• Ophthalmology
• Optometry
• Biomedical Engineering

Background:

• The Canon AutoRef R-1 is a standard autorefractor.
• Continuous optometry offers advantages over single-shot measurements.
• Previous work established the feasibility of modifying the R-1.

Purpose of the Study:

• To provide detailed technical instructions for modifying the Canon AutoRef R-1.
• To enable continuous recording optometry while preserving single-shot functionality.
• To facilitate the implementation of this dual-mode system in research laboratories.

Main Methods:

• Detailed description of hardware and software modifications to the Canon AutoRef R-1.
• Explanation of the integration for continuous data acquisition.
• Validation of retained single-shot measurement accuracy.

Main Results:

• Successful modification of the Canon AutoRef R-1 for continuous optometry.
• Demonstration of seamless switching between continuous and single-shot modes.
• Confirmation that the modification does not compromise the original single-shot accuracy.

Conclusions:

• The modified Canon AutoRef R-1 serves as a versatile tool for both continuous and single-shot optometric measurements.
• This technical note provides a practical guide for researchers to replicate the modification.
• The dual-mode optometer enhances research capabilities in ophthalmology and optometry.