18.5/21.5 Inch Visual Acuity Chart Digital, LCD Electronic Optical Eye Charts with Remote, Test 300+ Visual Targets, 1-6.2m Distance Adjustable, for Eye Exams,18.5"Screen

【DIGITAL VISION CHART】The LCD eye board has a variety of visual targets: E, C, letters, Arabic numerals, children's visual targets, etc. Used to measure vision; red-green visual targets, cell visual targets, astigmatism detection, color blindness detection, amblyopia training, etc. Used to measure astigmatism and color weakness 【HIGH PRECISION】Our vision card usage distance: 1-6m. And it can be precisely adjusted with a maximum accuracy of 0.1M (the image size can be adjusted by adjusting the working distance. In addition, it is equipped with a high-quality remote control and the working distance can reach 8 meters 【ULTRA-LIGHT DESIGN】High-resolution LED screen, clear visual targets, can display more than 300 visual targets. Ultra-thin and ultra-light design, high-definition solution, professional multi-coal audio and video processing technology, fast switching, easy ope-ration 【INSTALLATION METHOD】Our digital vision board has a convenient and practical visual sensitivity test function, and the screen brightness can be adjusted to provide visual cues up to 3 rows and 8 columns. It also has two installation methods: flat mounting and wall mounting 【APPLICATION】Eye charts are often used by healthcare professionals to screen for visual impairment. They also use eye charts to monitor patients' visual responses to various treatments (such as drugs or surgery). Suitable for large optical shops, vision care centers, hospitals, optometry training centers, etc, Manufacturer: GYQSSD