LEA NUMBERS Chart for Vision Rehabilitation

This test is designed for testing children and adults with visual impairment at a distance of one meter. The LEA NUMBERS^® in this assessment tool include the largest numbers, 50M in size, corresponding to 1m/50M = to 1/50 or decimal visual acuity 0.02, equivalent values 20/1000, 6/300. The smallest numbers are 1M in size corresponding to 1m/1M = to 1/1 or decimal visual acuity 1.00, equivalent values 20/20, 6/6. Designed courtesy of August Colenbrander, MD.

Measurements: 16 in x 21.5 in (40.7 cm x 54.6 cm). Folds to 16 in x 10.75 in (40.7 cm x 27.3 cm).

Test distance: 40 in/1 meter