Stereo depth-perception tests have proven to be an effective and easy-to-use method of screening vision for all ages. Stereopsis tests provide information about depth perception and how the eyes function together as a team. While wearing special polarized glasses, the patient looks at a series of 3-D objects that range from being very raised to nearly flat. In each series, the patient is asked to select the object with the greatest 3-D effect.
These tests can help to identify vision problems and conduct stereopsis, amblyopia, suppression, and strabismus testing, each of which can impede a child's development and performance.