- Massachusetts Sight Line LEA SYMBOLS® and Sloan Letters Vision Screening Flipbook Kit
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: