LEA SYMBOLS® & Landolt C Low Contrast Charts Set254950
A pediatric distance visual acuity eye chart featuring LEA SYMBOLS® for screening or testing individuals starting at age 21/2. This eye chart has two 2.5% low Contrast sides. The front side of the eye chart features pediatric 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 backside features proportionally spaced E and C Charts. Comes with a response key.
The LEA SYMBOLS® side features line sizes ranging from 10/100 to 10/4 (3/30 to 3/1.2) equivalent. The Landolt C side has line sizes from 10/100 to 10/5 (3/30 to 3/1.5) equivalent. The other equivalents featured on both sides of this chart are letter size, 20 foot, 6 meter, decimal, and LogMAR.
Dimensions: 17" x 21" (43 cm x 53 cm).
Test distance: 10 feet/3 meters.