LEA NUMBERS® LOW CONTRAST TEST 10M by Good-Lite Price US$POA Supplier/s Good-Lite Supplier Code LEA NUMBERS® LOW CONTRAST TEST 10M ( IAPB ) Country of Origin United States of America Request a quote Product Description Now it is easy to measure, record, and detect changes in the transfer of visual information when the change only affects visual acuity at low contrast levels. These charts present numbers at the following contrast levels: 25%, 10%, 5%, 2.5%, and 1.25%. Each chart has 5 offset pages for easy flipping. Recording forms and instructions are included. Product Features Dimensions: 9" x 3.25" (22.9 cm x 8.25 cm). Share: