Feature:
1. Completely Filtered: Our worth 4 dot test light's red and green colors are pure, other colors can be completely filtered, and red and green colors are complementary, which can effectively avoid detection deviation.
2. Applicable: Our 4 dot light test kit is used for clinical tests of eye suppression and amblyopia, and it can determine the type of color disorder.
3. Test: Our 4 dot light test kit is used for clinical tests of eye suppression and amblyopia, and it can determine the type of color disorder and you will be satisfied.
4. Check Color Blindness: The flipper design is simple but very practical to use, helping you test for color blindness and color weakness, with interpupillary distance.
5. Scenes: Visual function test tool can improve visual clarity and make your eyes more comfortable, suitable for optometry places, optical shops, etc.

Specification:
Item Type: Worth 4 dot light
Material: ABS
Battery: Li ion battery 1200mah (built in)
Product Function: Wear red and green glasses to observe the worth 4 dot light, and use the aura of complementary colors to separate the 2 eyes, so as to determine whether the 2 eyes have monocular inhibition and function under the condition of separation.

How to Use:
1. There are usually 4 holes on the of the worth 4 dot light, with a diameter of about 0.4in. They will be organized into rhombus. Traditionally, the holes are arranged in such a way that the top hole only shows red light, the left and right only green light, and the bottom shows white light.
2. Looking at the worth 4 dot light with red and green glasses, people with normal in both eyes will see the 4 holes. If the patient has eye suppression, he will see 2 or 3 holes. If the eye does not the images, the patient sees 5 holes (the eye sees 2 white holes 2 separated and 2 holes not fused).
3. White holes are also used to test the dominant eye. If the 2 eyes can the images, the color