Description
The LANG-STEREOTEST® I-R is a revised version of the LANG-STEREOTEST® I which has been designed by J. Lang to binocular diagnosis and screening for disorders of stereopsis. This revised version has improved optical and print quality respect to the former version, and has no monocular clues when used correctly.
Characteristics and New Features
Random dot test card with lenticular surface, 14.5cmx9c.5cm
Three random dot stereo objects with different disparities: CAT 1200”, STAR 600” and CAR 400”, appearing on three different levels above background.
Distance: 30-40cm (reading distance)
NEW: Rounded corners
NEW: Brief instructions in English on the back of the test card, with a schematic diagram for correct use, mirrored arrangement to the stereo objects and typical pattern of eye movements in stereo-positive subjects.
NEW: New handy and light case