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

LEA SYMBOLS®: The Gold Standard

Specifications
Product type: Vision Testing Aids
Test type: Low Vision
Optotype: LEA Numbers®
Certifications: CE
Weight: 1 kg (2.2 lb)
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.
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

LEA SYMBOLS®: The Gold Standard

Specifications
Product type: Vision Testing Aids
Test type: Low Vision
Optotype: LEA Numbers®
Certifications: CE
Weight: 1 kg (2.2 lb)
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.

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Cards: LEA NUMBERS® Cards 40M and 60M

$60.50
$60.50
$60.50
Shipping calculated at checkout.

SKU: 272400

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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

LEA SYMBOLS®: The Gold Standard

Specifications
Product type: Vision Testing Aids
Test type: Low Vision
Optotype: LEA Numbers®
Certifications: CE
Weight: 1 kg (2.2 lb)
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.
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

LEA SYMBOLS®: The Gold Standard

Specifications
Product type: Vision Testing Aids
Test type: Low Vision
Optotype: LEA Numbers®
Certifications: CE
Weight: 1 kg (2.2 lb)
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.
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