Feature: 1. PROFESSIONAL: Red green color pure, can be complete filter, red and green color complementary, effectively avoid detection bias. 2. FUNCTION: For , suppression and diplopia testing and training. 4 dot optometric flashlight with red and green glasses and battery charger. 3. ANTI SLIP FLASHLIGHT: The flashlight in this set of optometry tools has an anti slip design, which is easy to hold and not easy to slip off when using. Specification: Item Type: 4 Dot Red Green Light Glasses Material: ABS Built in Battery: Lithium ion battery 1200mAH Product Function: 1. Wearing red and green glasses to observe the four dot light, the use of color complementarity of this situation. How to Use: 1.Theflashlightusuallyhasfourholesonthe,about0.4inindiameter.theywillbeorganizedintoarhombusshape.Theholesarearrangedinsuchawaythatthetopholeshowsonlyredlight,theleftandrightshowonlygreenlight,andthebottomholeshowswhitelight. 2.Whenlookingattheflashlightwithredandgreenglasses,apatientwithnormalinbotheyeswillseethefourholesdirectly.Ifthepatienthassuppressedeyes,hewillseetwoorthreeholes.Iftheeyedoesnothaveafusedimage,thepatientwillseefiveholes(iftheeyeseestwowhiteholestwoseparate Package List: 1 x Four Dot Light 1 x Storage

4 Red Green-Anti-slip Flashlight: The flashlight in this set of optometry tools has an anti-slip design, which is easy to hold and not easy to slip off when using. Dot Red Green-PROFESSIONAL: Red-green color pure, can be full filter, red and green color complementary, avoiding detection error. 4 Dot Red-FUNCTION: For testing and training , suppression and diplopia. 4-point opto-torch with red and green glasses and charger. Red Glasses Green-DURABLE: Made of hard, durable plastic, the 4-point test tools are lightweight and virtually unbreakable. Include the red green glasses and the instruction manual. Green Glasses Flashlight-1200mAh BATTERY: Built-in rechargeable battery. 1200mAH rechargeable lithium battery, small size but high power, service life 2-3 years, can be cycle charged 500 times.

Best Sellers Rank: See Top 100 in Industrial & Scientific. : B0BK3J9VPM. Manufacturer: TMISHION. Date First Available: October 22, 2022. Item model number: TMISHIONdto4g81yhr. Package Dimensions: 9.84 x 7.48 x 3.15 inches; 11.96 Ounces.