Two smaller groups 10/20 to 10/8 for repetitive eyesight testing (20/40 to 20/16 equiv.).
Can be wall-mounted.
This translucent eye chart uses Sloan
optotype
s for accurate testing. Each
optotype
has been calibrated for size, difficulty, threshold blur, and dimension. Each line is arranged equally. This eye test also includes two smaller groups for repetitive testing without memorization.
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