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Charts from Good-Lite
Good-Lite offers a wide selection of low contrast charts to fit your testing needs. Charts are available in different contrast levels and testing distances.
All charts are proportionally spaced (logMAR) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent, 0.10 to 2.00. 24.5″H x 25.5″W (62 cm x 65 cm).
13 feet/4 meters Testing Distance
LEA NUMBERS® Optotype
2.5% 274200
10% 274300
13 feet/4 meters Testing Distance
Sloan Letters Optotype
1.25% 500022
2.5% 500021
5% 500020
10% 500019
25% 500023
10 feet/3 meters Testing Distance
Sloan Letters Optotype
1.25% 500030
2.5% 500029
5% 500028
10% 500027
25% 500026