Customer Login or Sign Up

Log In

Shopping Cart  Your Shopping Cart: 0 Items

You are here: Home > LEA Core Tests > LEA NUMBERS® Cards, 40M and 60M
Single Number Low Vision Cards

 

LEA NUMBERS® Cards, 40M and 60M

These five LEA NUMBERSĀ® Cards can be used for presentation as single optotypes or arranged in a row as a line test. When the cards are next to each other, the space between the numbers is equal to the width of the symbols. To determine the visual acuity use the following formula:

VA=Viewing Distance Used(meters)/M-value

60M cards are approx. 6" x 9" (15.25 cm x 22.9 cm). 40M cards are approx. 4" x 6" (10.2 cm x 15.25 cm).

Add To Shopping Cart

SKU
Price Qty.
272400 $50.00

 

You may also be interested in these products:

Copyright ©2004 - 2019 Good-Lite Co., All Rights Reserved.