LEA SYMBOLS® Translucent Low Contrast Charts for Illuminated Cabinet

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A low contrast test is a special way to
measure visual acuity to determine how well
eyes function in low light situations and/or to
determine how well eyes distinguish objects
from similarly colored or shaded backgrounds.
Testing is identical to the measurement of visual
acuity at high contrast level. The 2.5% test is
the most practical test in clinical use. Available
in 5 contrast levels: 1.25%, 2.5%, 5%, 10%,
and 25%. Includes response key, training cards,
recording forms, and instructions.
A 1.25% . . . . . . . . . . . . . . . . . . . . . .253700
B 2.5% . . . . . . . . . . . . . . . . . . . . . . .253800
C 5% . . . . . . . . . . . . . . . . . . . . . . . .253900
D 10% . . . . . . . . . . . . . . . . . . . . . . .254000
E 25% . . . . . . . . . . . . . . . . . . . . . .254100