Butterfly Stereotest

The "Butterfly-S" stereo test with geometric shapes allows for an uncomplicated check of stereoscopic perception in all age groups. The book format of the test offers three different examinations that can be viewed with polarization glasses.

• The butterfly provides a gross stereo impression and is therefore also understandable for toddlers. Below the butterfly is a suppression test.
• The circles with ten different horizontal disparities allow for a quantitative measurement of stereo vision.
• The geometric shapes with three different horizontal disparities facilitate the test, especially for children.

The test includes two pages with stereo images on the inside and an answer key on the outside of the book.

The testing distance is 40 cm.