stereopsisn.

1911 T. L. Stedman Pract. Med. Dict. 826/1 Stereopsis, stereoscopic vision.

1920 Arch. Ophthalmol. 49 64 When the facts are known it is quite possible that visual tests will not stop with measuring the acuity of each eye and the color sense, but that a certain standard of stereopsis will be required.

1961 Lancet 22 July 168/2 No stereopsis has been demonstrated in any of these patients.

1972 Sci. Amer. Aug. 86/3 By providing very precise localization of objects in visual space, stereopsis can be regarded as the raison d'être of binocular vision.

1931 Arch. Ophthalmol. 6 139 Stereoptic reactions of a grade above the lowest are observable in ordinary fishes, but the lowest grade is probably not represented in any surviving species.

1972 Sci. Amer. Aug. 120/2 No one believes that the anatomical retina could possibly be given information on any large scale from the mind; there are few, if any, outgoing pathways. Therefore, Julesz conjectures, the eidetic image is formed later than the image on the retina but earlier than the stereoptic image, perhaps much earlier.

1972 Sci. Amer. Apr. 65/3 One can also feed the three-dimensional coordinates into a computer and obtain simple ball-and-stick drawings that can be viewed stereoptically, enabling one to visualize the folded chain of the protein in three dimensions.

1976 Billings (Montana) Gaz. 24 June 16- a/1 More pictures were taken Wednesday on Viking's fourth pass over the site, Chryse, by Viking's twin cameras. They were lined up to photograph overlapping strips which can be viewed stereoptically for a three-dimensional effect.