UCanSee Snellen Eye Chart Visual Acuity Chart for Eye Exams 10 Feet (9x14 Inches)

Product Description The Snellen eye chart is a standard tool used to assess visual acuity.It helps measure visual acuity from a distance of 10 feet. The equivalent of 20 feet for testing is 10 feet (3 meters).The size of each optotype is meticulously designed following the one-minute visual angle principle, guaranteeing precise measurements for accurate vision testing. This product ships from: United States / China. Material and Durability: Constructed from thick and durable PVC material, this visual acuity chart ensures sturdiness and waterproof capabilities. Its matte finish eliminates glare and reflections, creating an optimal testing environment for accurate results. Accurate Size and Design: Each optotype on the Snellen chart is meticulously sized according to the one-minute visual angle principle, ensuring precise measurements for accurate vision testing. Additionally, the inclusion of red and green color bars facilitates the assessment of red-green color blindness. Convenient