The wall charts feature LEA SYMBOLS® and HOTV optotypes with 50% spaced crowding box surrounding each line for screening children ages preschool through grade 12. These charts contain one practice line of 20/100 and screening line sizes of 20/50, 20/40, 20/32, and 20/25.
Preschool Vision Screening Wall Chart includes:
- Wall chart with LEA SYMBOLS® and HOTV optotypes
- Response Panel and Flash Cards
- Screening directions
Measurements: 16 in x 11 in (16 cm x 28 cm)
Test distance: 10 feet/3 meters