Flipbook used at 5-foot (1.5 meters) screening distance with single, surrounded LEA SYMBOLS meets preferred practice recommendations from the National Expert Panel to the National Center for Childrens Vision and Eye Health at Prevent Blindness.
Designed for use by lay screeners, nurses, and others who screen children in educational, community, public health, or primary health care settings.
Each card contains a single LEA SYMBOLS optotype surrounded with 50%-spaced crowding bars. Attached measuring cord ensures 5-foot (1.5 meters) screening distance between the flipbook cards and childs eyes.
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