LEA symbols
Pronunciation: LEE-ah SIM-bols
Visual acuity test using four symbols (house, circle, square, apple) for young children.
Full Definition
LEA symbols is a visual acuity testing system designed by Dr. Lea Hyvärinen for use in young children who cannot yet identify letters or numbers. The test uses four easily recognizable symbols: a house, circle, square, and apple, which are presented at decreasing sizes to determine visual acuity. The symbols are designed to have similar recognition difficulty and are available in various formats including single symbols, lines, and crowded presentations. This test is particularly useful for children with developmental delays or those from different cultural backgrounds.
Usage
Usage note: Particularly useful for non-verbal children or those with cognitive delays.
In Context
- "LEA symbols were used to assess visual acuity in the 3-year-old with developmental delay." — Pediatric assessment report
- "The child achieved 20/30 vision bilaterally using crowded LEA symbols." — Vision examination results