Good-Lite Co LEA NUMBERS® Cards 40M and 60M
    Good-Lite Co LEA NUMBERS® Cards 40M and 60M
Good-Lite Co LEA NUMBERS® Cards 40M and 60M
Good-Lite Co LEA NUMBERS® Cards 40M and 60M
    Good-Lite Co LEA NUMBERS® Cards 40M and 60M
Good-Lite Co LEA NUMBERS® Cards 40M and 60M

About

Description

These five LEA NUMBERS® 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

Dimensions: 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).

Testing distance: 40"/1 meter.

Click here for the 272400 Guide.

LEA SYMBOLS®: The Gold Standard

Click here for the Low Vision Tutorial.


Description

These five LEA NUMBERS® 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

Dimensions: 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).

Testing distance: 40"/1 meter.

Click here for the 272400 Guide.

LEA SYMBOLS®: The Gold Standard

Click here for the Low Vision Tutorial.


LEA NUMBERS® Cards 40M and 60M

Regular price
$55.95
Sale price
$55.95
Regular price
$0.00
Shipping calculated at checkout.

Translation missing: en.products.product.sku:272400

Local and International Shipping
Shop with confidence and have your favorite products delivered right to your doorstep.
Our Product Satisfaction Guarantee
If you're not completely satisfied with your purchase, we’ll make it right!
Online Support 24/7
Get in touch with us anytime, anywhere, and let's get you sorted.
Regular Sales
Don't miss out on our amazing deals with regular sales on our cutting-edge products

Check Out These Related Products