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Do not base your order on the picture presented.
Crowded optotypes in the following size equivalents: 20/50, 20/40, 20/30, and 20/20. 9" x 14" (22.9 cm x 35.6 cm).
Chart Set includes response key, flash cards, and instructions along with the chart. Switch box overlay is included for either options.
Medex SKU: GL-904015