Lea Symbols Translucent Contrast Chart Set  1.25% to 25%

Lea Symbols Translucent Contrast Chart Set 1.25% to 25%

253700
Regular price
$74.00
Sale price
$74.00

LEA SYMBOLS® Translucent Low Contrast Charts for Illuminated Cabinet

 

A low contrast test is a special way to measure visual acuity; determining how well eyes function in low light situations and/or being able to distinguish objects from similarly colored or shaded backgrounds. Testing is identical to the measurement of visual acuity at high contrast level. The 2.5% test is the most practical test 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. Includes response key, training cards, recording forms and instructions.