LEA SYMBOLS® TRANSLUCENT LOW CONTRAST CHARTS FOR ILLUMINATED CABINET
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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A low contrast test is a special way to measure how well eyes function in low light situations and/or are able to distinguish objects from similarly colored or shaded backgrounds. Testing is identical to the measurement of visual acuity at a high contrast level. The 2.5% test is the most practical in clinical use. Available in 5 Contrast levels: 1.25%, 2.5%, 5%, 10%, and 25%. This chart can either be wall mounted or used in an ESV1200, ESV1500, or a Model A+ illuminated cabinet. Each chart includes a response key and instructions.
Dimensions: 9" x 14" (22.9 cm x 35.6 cm).
Testing distance: 10 feet/3 meters.
