UCanSee UCanSee E Eye Chart Visual Acuity Chart with Astigmatism Dial for Eye Exams 20 Feet (11x24 Inches)

Product Description The E Eye Chart Visual Acuity Chart with Astigmatism Dial is a standard tool used to assess visual acuity. 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 the United States.  Material and Durability: Crafted from thick and robust PVC material, this visual acuity chart ensures durability and waterproof capabilities. Its matte finish eliminates glare and reflections, providing an optimal testing environment for accurate results. Accurate Size and Design: Each letter is meticulously sized according to the one-minute visual angle principle, ensuring precise measurements. The chart features the letter "E" in various orientations (up, down, left, and right), making it suitable for testing individuals unfamiliar with different alphabet letters or those who have difficulty reading. Additionally, red and green color bars aid in assessing