LED Eye Chart Light Box: This light box features a standard eye chart to measure vision and detect issues such as astigmatism, myopia, hyperopia, and color deficiencies. Durable Clear Markings: Constructed with high-tech panels that are robust and impact-resistant, it utilizes crystal LED lamp beads for uniform illumination and glare reduction. The chart is printed with UV inkjet technology for clear and long-lasting text. Energy-Efficient Design: This 2.5m/8 feet eye chart light box provides a constant LED light source with uniform brightness, ensuring energy efficiency and a long service life. Simple Installation: Designed with hooks for easy wall mounting, this eye chart also serves as an attractive wall decoration, enabling quick eye examinations and vision tests. Service: We place great emphasis on our customers' shopping experience. If you have any questions, please feel free to contact us; we will respond to you within 24 hours!