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Critical line flipbook used at a 10-foot (3 meters) screening distances.
Sight Line Handheld Vision Screening Flipbook meets referral criteria from the National Expert Panel to the National Center for Children’s Vision and Eye Health (NCCVEH) at Prevent Blindness (https://nationalcenter.preventblindness.org/vision-screening-recommendations) and is designed for use by lay screeners, nurses, and others who screen children in educational, community, public health, or primary health care settings. Sight Line, a critical line flipbook used at a 10-foot (3 meters) screening distance, includes SLOAN LETTER optotypes and LEA SYMBOLS®. Each card contains five LEA SYMBOLS® optotypes surrounded by a 50%-spaced crowding box.
This critical line test of visual acuity includes:
2 lines of 20/50 for children ages 3 years for screening each eye monocularly.
2 lines of 20/40 for children ages 4 and 5 years for screening each eye monocularly.
2 lines of 20/32 for children ages 6 years and older for screening each eye monocularly.
1 - Translucent LEA Symbol Response Panel
1 - Massachusetts Sight Line Handheld Vision Screening Flipbook