Tumbling E distance vision chart with linear-spaced lines; line sizes range
from 20/100 to 20/20 (6/30 to 6/6). This chart can be used in Good-Lite's
illuminated ESV1080 or hung on the wall. Chart size is 10" x 18" (25.4 cm x 45.7
cm).
20 feet, 6 meters testing distance.
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