Designed to measure visual acuity, this LEA Numbers Card has a standard line test and three tighter spaced tests; 50%, 25% and 12.5% which often reveal difficulties in seeing tightly crowded details. Line sizes range from 20/400 to 20/10 (6/120 to 6/3) equivalent, 0.05 to 2.00. Card measures 8" x 10" (20.3 cm x 25.4 cm).
|List Price (Product Availability)||Available through Eye Care Professionals Only.|
|Size (in)||8in by 10in|
|Size (cm)||20cm by 25.5cm|
|Distance (m)||40 centimeters|