ETDRS ORIGINAL SERIES CHART R
Brand: GOOD - LITE
In stock
Medical device notice: Use this product only as directed. It is not intended to diagnose, treat, cure, or prevent any disease. Read our full disclaimer.
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An original series ETDRS eye chart with proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. Features the standardized format used in National Eye Institute clinical studies and in Low Vision evaluations that require accurate and repeatable visual acuity measurements.
Available in 2 different versions: The Standard ETDRS style chart is printed on .01 thick styrene plastic making the chart more rigid. The Roll-Up ETDRS style chart is printed on .015 thick styrene plastic allowing the chart to be rolled up for easy transporting or storage. Both are UV coated for long-lasting durability.
Dimensions: 24.5" x 25.5" (62 cm x 65 cm).
Testing distance: 13 feet/4 meters.
