LEA SYMBOLS® & Tumbling E Chart Set252800
A pediatric distance visual acuity eye chart featuring LEA SYMBOLS® for screening or testing individuals starting at age 3 years. This eye chart has two sides. The front of the eye chart features LEA SYMBOLS® in proportionally spaced lines (ETDRS, format) for monocular (testing one eye with the other eye occluded) and binocular (testing both eyes simultaneously) visual acuity testing or screening. The back features proportionally spaced Tumbling E optotypes.
The LEA SYMBOLS® side features line sizes ranging from 20/200 to 20/8 (6/60 to 6/2.4) equivalent. The Tumbling E side features line sizes from 20/200 to 20/10 (6/60 to 6/3). This product has a hole for hanging the chart on the wall. Includes response key and instructions.
Dimensions: 17" x 21" (43 cm x 53.4 cm).
Testing distance: 10 feet/3 meters.