HIDING HEIDI® Test na sníženou kontrastní citlivost

Popis

HIDING HEIDI® Test na sníženou kontrastní citlivost in black,

4 karty printed on both sides in the following Kontrastní levels: 25%, 10%, 5%, 2.5%, and 1.25%,

promat: karty are 9″ x 9″ (23 cm x 23 cm) and includes instructions.

Visual communication is the most important communication method dukruhy the first year of life. The ability to detect objects of low Kontrastní is an important component of the visual system.