Answer
Sep 19, 2025 - 03:00 AM
Test distance is especially important for vision assessment tools, as it ensures accurate and standardized results. For example, the Tech-Med Plastic Eye Test Chart, Snellen is designed for use at a 20 ft. distance, which is the standard for eye exams and ensures reliable testing. Variance in test distance allows users to select charts or tools appropriate for their space and professional requirements, with options available for both clinical and home use.
