Eye Chart Light Box - Purpose and compatibility: Designed to support standard eye charts used to measure vision and detect common problems such as astigmatism, nearsightedness, farsightedness, and red-green color weakness. The aluminum alloy frame provides sturdy support for standard eye charts. - No glare and durability: The chart layout is printed with fade-resistant ink for clear, long-lasting legibility. The PS frosted panel light box is easy to clean with one wipe and built to be durable in daily use. - Upgraded design: Unlike typical market designs, some letters are rearranged to help test vision more precisely and differentiate acuity levels. - Clear writing and reliable illumination: High-tech panels are strong and resistant to damage. Crystal LED lamp beads deliver uniform, glare-free illumination for easy reading. - Applications: Use in optometry clinics for routine screenings and patient exams. Suitable for schools, nursing stations, or vision screening events. Also useful for home practice or training to monitor changes in visual acuity over time.