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Do not base your order on the picture presented.
Sloan Letters chart for the Super Pinhole Macula Cabinet with characters in a different/scrambled order for situations where repetitive testing are involved.
Proportionally spaced lines; line sizes range from 20/100 to 20/20 (6/30 to 6/6) equivalent. Sloan Letters Super Pinhole chart measures 10" x 10" (25.4cm x 25.4cm)
Medex SKU: GL-300305