This comprehensive book, part of The AAPOS Vision Screening Kit, is essential for various vision screening practitioners, including school nurses, Lions Club members, and medical personnel in pediatrics and family medicine. It features spiral-bound, multi-sided, distance visual acuity eye charts in both full threshold and critical line formats, suitable for wall mounting or handheld use during 10-ft. screenings.

Key Features:

• Sloan Letters for children familiar with random letters
• LEA SYMBOLS® for preschoolers and children not yet familiar with random letters
• Full-Chart Threshold and Single Critical Line formats
• Threshold screening method involves starting at the top of the chart and moving down until the individual misses 3 of 5 optotypes
• Critical line screening focuses on the specific line where the individual should correctly identify 3 of 5 optotypes based on age:
• • Children aged 3 years: 20/50 line
  • Children aged 4 years: 20/40 line
  • Children aged 5 years and older, as well as adults: 20/32 line