LED Eye Chart: Energy-efficient LED display made of high-quality materials, providing a safe, reliable, and durable solution with no reflection or glare, ideal for eye exams and as a thoughtful gift. Adjustable Brightness: This eye chart features adjustable brightness with a switch located at the bottom, allowing you to set the illumination level to suit your needs for accurate vision testing, suitable for both professional and personal use. Convenient Measurement: Easily measures visual acuity from a distance of 30cm, with front measuring distance of 30cm and rear of 25cm, making it simple to monitor vision for both children and adults. Standard Logarithmic Near Vision Meter: This rechargeable LED device boasts clear vision markers for accurate measurements and can be used in various ways, including handheld, wall-mounted, or placed on a countertop, suitable for testing near vision for conditions such as farsightedness. Ideal Choice: A perfect gift for eye care professionals and suitable for use at home, school, or in an office setting, making it an excellent option for kids, students, and anyone needing vision assessment.