Worth 4 Dot Red Green Glasses Complete Filtering Increase Color Contrast Avoid Deviation

About this item

• Feature: 1. Avoid Deviation: The red and green colors of the ophthalmic tester have high purity and can be completely filtered, which complement each other to effectively avoid detection deviation. 2. Increase Color Contrast: Optometry tool comes with color blind clip glasses to help minimize distortion and increase the contrast of all colors. 3. Main Function: Wearing red and green glasses to observe the four dot light, the use of color complementarity of this situation, the separation of the two eyes to effectively determine if there is a vision problem. 4. Flashlight Handle: The flashlight usually has four holes on its surface, about 1cm in diameter. It has an anti slip design, which is easy to hold and not easy to slip off. 5. Portable Desgin: 4 dot test tools are lightweight and virtually unbreakable. Include the red green glasses, and instructions manual. Specification: Item Type: 4 Dot Red Green Light Glasses Material: ABS Built in Battery: 2 x AA battery (not included) Product Function: 1. Wearing red and green glasses to observe the four dot light, the use of color complementarity of this situation, the separation of the two eyes to determine whether there is visual fusion dysfunction in the two eyes in the case of separation of monocular inhibition at the same time.. Package List: 1 x Four Dot Light1 x Glasses 1 x Left Red Clip Glasses1 x Right Red Clip Glasses 1 x Instruction Manual 1 x Storage Box