The LANG STEREOTEST is a rapid test for the screening of stereoscopic vision disorders in children. The test allows for early diagnosis without the use of polarized glasses.
Compared to the Lang Stereotest I, the LANG STEREOTEST I-R has new features:
• INCREASED SHARPNESS AND HOMOGENEITY OF THE DRAWINGS, the car has a disparity of 400 '' (compared to 550 '' of the LANG-STEREOTEST I), making the gradation between objects more harmonious.
• REDUCED SINGLE EYE RECOGNITION, in monocular vision these stereograms do not reveal any contours, while in binocular vision the areas that produce a horizontal disparity are seen in relief.
• ROUNDED EDGES
• BRIEF INSTRUCTIONS IN ENGLISH ON THE BACK OF THE TEST CARD, WITH SCHEMATIC DIAGRAM FOR USE
Sizes: 14.5cm x 9.5cm with rounded corners
Test distance 30-40cm.
Three random point stereo objects with different disparities CAT 1200'', STAR 600'' and CAR 400".
