Near Vision Charts for Self Illuminating Viewer
Adult Near Vision proportionally spaced acuity cards for the the Self Illuminated Viewer. This lit up display are individual cards which are available in the following optotypes; LEA SYMBOLS®, LEA NUMBERS®, Sloan Letters, Tumbling E and Amsler Grid. Line sizes range from 20/250 to 20/10 (6/75 to 6/3) equivalent.
Testing distance is 16"/40cm. Cards measure 6" x 4" (15.3 x 10.2 cm), screen printed and clear coated for long durability.