![SLOAN LETTER, LOW CONTRAST FLIP CHART](http://sacor.ca/cdn/shop/products/736000_lg_540x_d1201a61-bc85-4f59-8efa-e7986a6159b2_{width}x.png?v=1615570188)
Easily measure, record, and detect changes in the transfer of visual information when the change affects only visual acuity at low Contrast levels. Charts include the following Contrast levels: black, 25%, 10%, 5%, 2.5%, and 1.25%. Pages are offset for easy flipping. Each chart includes recording forms and instructions. 6 pages, 3.25 in x 9 in (8.25 cm x 22.9 cm).