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5 Percentage LEA SYMBOLS Translucent Low Contrast Charts for Illuminated Cabinet

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SKU : 253900

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. contrast level: 5%. 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.

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. contrast level: 5%. 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.

These charts have line sizes ranging from 10/63 to 10/4 (3/19 to 3/1.2) equivalent. The other equivalents featured on these charts are letter size, 20 foot, 6 meter, decimal, and LogMAR.

Dimensions: 9″ x 14″ (22.9 cm x 35.6 cm).

Testing distance: 10 feet/3 meters.

SKU: 253900 Categories: ,
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Dimensions            :   9″ x 14″ (22.9 cm x 35.6 cm).

Testing distance    :   10 feet/3 meters.

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