Snellen Letter Acuity Test Chart

The Snellen Visual Acuity Chart is designed to be read at a distance of 20 feet, and has a rating of direct: 20/15 to 20/200. This classic letter eye chart is made of extra strong, non-reflecting, matte finish cardboard, with a brass eyelet for wall mounting. Blue, red and green bars not only serve as a reference point, but also hint as to a patient's color perception. An interesting additional feature of this 10" x 28" Snellen Letter Test Chart is that it folds in half with a hinge for portability.