- Designed for testing the visual acuity of children who are not yet familiar with the alphabet
- Also, for anyone who cannot respond to a traditional Snellen chart
Uses:
- Primary purpose is to assess distance vision in young children (kindergarten age and younger) who cannot verbalize letters
- The child points in the direction of the image or names the picture
- Also suitable for adults who are illiterate or have cognitive impairments that prevent them from using letter-based charts
- Used by pediatricians, ophthalmologists, optometrists, and school nurses for routine eye screenings
Key Features:
- Use easily recognizable pictures or symbols (like a house, apple, or hand) instead of letters
- Designed for a 20-foot test distance, which is the standard for distance visual acuity
- Measures around 22" x 11"
- Typically designed for a 14" (35.5 cm) test distance, standard reading distance for near vision
- Made of plastic with a non-reflective matte finish to minimize glare and ensure clear visibility during testing
- Latex-Free