The Lang Stereotest I-R is suitable for binocular diagnosis and screening of stereo vision disorders in young children of pre-verbal age. This test is the revised and improved version of the Lang Stereotest I named after the Swiss ophthalmologist Joseph Lang, as the optical and printing quality has been improved. In addition, this version has no monocular clues when used correctly.
The Random Dot test card is provided with three random dot stereo objects in different disparities. The test is performed with a reading distance of approx. 30 - 40 cm, without the additional use of glasses to separate the visual impressions. This allows the child's eye movements to be observed without restriction.
Product Details
Lang Stereotest I-R
For stereopsis testing in children and infants
Improved and revised version of the Lang Stereotest I
Applicable without glasses
Enables easy assessment of eye movements
Based on a combination of random dots (according to Julesz) and the cylinder grid method (according to Hess)
Random Dot test card with lenticular surface
Reading distance: 30 - 40 cm
Dimensions: approx. 14.5 x 9.5 cm
With brief instructions on the back of the test card (English)
