LEA Symbols are printed in black ink on clear plastic in 12 M sizes, one of each of the 4 Symbols at each level allow you to measure near visual acuity, of low vision children, on a light box. They can be used with the P IVI Bee for a Light Box to assess acuity in a play situation or alone on the light box. An instructional booklet gives tips for testing children. You can have standard illumination anywhere that has an outlet. The metal cabinet with a top handle weighs only 6 lbs.
Charts store in the back of the cabinet.
Some visually impaired children cannot see expressions and do not recognize people by their faces. Functional vision assessments should include testing the child s ability to see differences between facial expressions. Heidi Expressions consists of matching pairs of 6 basic expressions. There is a third card of each of the 6 expressions that has a bow in Heidi s hair.