• For children and infants
• Revised and improved version
• Stereopsis examination without additional glasses
• Motifs: cat, car, star
• Test card with handy case

Lang Stereotest I-R

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)
• Test card with handy case

Visible Objects and Disparities