LED eye chart light box international standard kindergarten E-logarithm eye measure vision
LED eye chart light box international standard kindergarten E-logarithm eye measure vision
LED eye chart light box international standard kindergarten E-logarithm eye measure vision
Eye charts: Eye charts are standard charts for measuring vision and detecting other vision problems such as astigmatism, nearsightedness and farsightedness, red-green color weakness. LED multifunctional light box: 2.5m multifunctional eye chart light box, LED constant light source, uniform brightness, energy saving and environmental protection, long service life. Clear visual mark: High-tech panels are used, which are tough and not easy to break. The fonts on the layout are printed with silk screen technology, and the writing is clear and not easy to fade. Ultra-thin and ultra-light design: Ultra-thin and ultra-light design, easy to operate, very durable and strong, and widely used.
