Stereotest Dinosaur, no glasses needed

The Stereotest Dinosaur was developed for children. It is used without polarized or tranaglyph glasses, and comes with two test plates. The right plate is used to test the stereopsis in general (large arc sec). The left plate is divided into two areas. The upper area is used to test between 400 and 40 arc sec. The lower area is used to test from 400, to 200 until 80 ar sec. See study from 2019, comparing this test to the classic test "The Fly" / "Stereo Fly": Volume 7, Issue 3, July 2019 of the Optometry & Visual Performance Journal.