This pediatric screening test was designed by West Virginia Vision Initiative for Children for quick amblyopia screening. This pass/fail wall chart contains two rows of LEA SYMBOLS®, one for each eye of critical line 20/40 for 3 years olds and 20/32 for 4 year olds and older. Includes response key. Instructions printed on reverse. 9" x 14" (22.9 cm x 35.6 cm).

Testing distance is 10 feet/3 meters.