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Good-Lite LEA Numbers Cards, 40M and 60M

$55.95
For larger quantities: Request a Quote
MFR:
272400
Medex SKU:
GL-272400
Packing Info:
1/Each
Usually Ships:
5 - 7 Business Days
Freight Quote Button:
False

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
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).