About
This chart featuring LEA NUMBERS® is designed to measure visual acuity with a standard line test and with 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.
Dimensions: 8" x 10" (20.3 cm x 25.4 cm).
Testing distance: 16"/40cm.
This chart featuring LEA NUMBERS® is designed to measure visual acuity with a standard line test and with 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.
Dimensions: 8" x 10" (20.3 cm x 25.4 cm).
Testing distance: 16"/40cm.
LEA Numbers® Near Vision Card
- Regular price
- $39.47
- Sale price
- $39.47
- Regular price
-
$0.00
SKU:270900
CE Approved
