The Green sheet is used for anti-suppression. Full-sized sheet can be used for reading and other activities in books or on a computer screen.
Measures 8.5 x 11 inches.
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The Green sheet is used for anti-suppression. Full-sized sheet can be used for reading and other activities in books or on a computer screen.
Measures 8.5 x 11 inches.
The Green sheet is used for anti-suppression. Full-sized sheet can be used for reading and other activities in books or on a computer screen.
Measures 8.5 x 11 inches.
Brands | Good Lite |
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Measures | 8.5 x 11 inches |
The LEA 3-D Puzzle is designed for supporting the development of the concept of “same”, first with colors, then with black & white concrete forms that are prerequisites for the measurement of recognition acuity with the LEA SYMBOLS® tests at an early age.
Stereoacuity depth preception test designed to rapidly test for amblyopia and strabismus in early and non-readers and non-verbal children and adults.
Test for quick measurement of low Contrast visual acuity at 25%, 10%, 5%, 2.5%, and 1.25% Contrast by measuring the distance where the symbols are seen. 10M symbols correspond to visual acuity 0.10 at 1 m, 0.05 at 0.5 m and 0.3 at 3 m. VA values are thus easy to calculate. Test includes a table for conversion to Snellen equivalent VA values, a response keys and instructions. 6 pages, 3.25″ x 9″ (8.25 cm x 22.9 cm).
Some children with brain damage-related vision loss may achieve near normal results in routine vision tests (large visual field and normal or near normal visual acuity), but cannot interpret facial expressions or recognize people’s faces.