LANG - Stereo Test II-R

The 2023 LANG II-R Stereotest is used for screening stereoscopic vision without separator glasses from 6 months of age. It contains horizontal disparities between 200 and 600 arcseconds.

In contrast to the previous version LANG 1, several details have been improved:
In addition to better optical and printing quality, it shows no monocular cues when used correctly. A short English instruction is now printed on the back.

Features:

• Random-dot test card with lenticular surface, 14.5cm x 9.5cm, rounded corners
• Test distance 30-40 cm
• Three stereo objects with different horizontal disparity and correspondingly different spatial displacement. Elephant 600, Car 400 and Moon 200
• the monocularly visible star with a disparity of 200 is intended to improve diagnostics in young children by increasing attention and reaction. In addition, subjects without binocular vision are less disappointed.
• Short instructions in English on the back of the test card, with a schematic drawing for correct use, mirrored arrangement of the stereo objects and typical patterns of eye movements in stereoscopic subjects