One investigation, published 2011, reported on a study on human stereopsis recovery using perceptual learning which was inspired by Barry's work.
42.
"If you had stereopsis, of fine-tuned depth perception, only in one eye, you can't hit a baseball.
43.
Many persons lacking stereopsis have ( or have had ) visible strabismus, which is known to have a potential socioeconomic impact on children and adults.
44.
Fine stereopsis requires both eyes to have a good visual acuity in order to detect small spatial differences, and is easily disrupted by early visual deprivation.
45.
It has been shown that the tolerance of human stereopsis to cyclodisparity of lines ( orientation disparity ) is greater for vertical lines than for horizontal lines.
46.
It has long been recognized that full binocular vision, including stereopsis, is an important factor in the stabilization of post-surgical outcome of strabismus corrections.
47.
In contrast, this aim has normally not been present in the treatment of those who missed out on learning stereopsis during their first few years of life.
48.
A suggested theory for the evolution of squamate vision is that corneal accommodation and monocular depth perception are " primitive " mechanisms in comparison to binocular vision and stereopsis.
49.
In particular, patients who have comparatively lower visual acuity tend to need relatively larger spatial frequencies to be present in the input images, else they cannot achieve stereopsis.
50.
This aims to recover stereo vision in very young children, as well as in patients who had acquired but lost their ability for stereopsis due to a medical condition.