Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página 89
... halves of the retinæ produce homonymously double images , in this case the bright circle on the right of the point of sight belongs to the right eye and that on the left to the left eye always . I find , in looking to the right , the ...
... halves of the retinæ produce homonymously double images , in this case the bright circle on the right of the point of sight belongs to the right eye and that on the left to the left eye always . I find , in looking to the right , the ...
Página 109
... middle plane of the head ( i . e . , the vertical plane through the nose , and dividing the head into two symmetrical halves ) , and separated by a considerable distance - say one 8 inches and the other 9 SINGLE AND DOUBLE VISION . 109.
... middle plane of the head ( i . e . , the vertical plane through the nose , and dividing the head into two symmetrical halves ) , and separated by a considerable distance - say one 8 inches and the other 9 SINGLE AND DOUBLE VISION . 109.
Página 112
... halves , then the right or shaded halves would correspond point for point , and the left or unshaded halves would correspond point for point ; i . e . , the internal or nasal half of one retina corresponds with the external or temporal ...
... halves , then the right or shaded halves would correspond point for point , and the left or unshaded halves would correspond point for point ; i . e . , the internal or nasal half of one retina corresponds with the external or temporal ...
Página 113
... HALVES OF THE RETINÆ . a pair of dividers and open the points until they are the exact distance apart of the central spots ( interocular space ) . Then , holding level , suppose the two retinæ to be touched at many points . The points ...
... HALVES OF THE RETINÆ . a pair of dividers and open the points until they are the exact distance apart of the central spots ( interocular space ) . Then , holding level , suppose the two retinæ to be touched at many points . The points ...
Página 114
... halves is not perfectly vertical , but slightly inclined outward at the top . This would affect all the meridians slightly ; but the effect is very small , and I do not find it so in my eyes . We shall discuss this point again ( page ...
... halves is not perfectly vertical , but slightly inclined outward at the top . This would affect all the meridians slightly ; but the effect is very small , and I do not find it so in my eyes . We shall discuss this point again ( page ...
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Términos y frases comunes
adjustment angle axis bacillary layer becomes binocular eye binocular perspective binocular vision blind spot camera central spot ciliary muscle circle colors combined image concave corresponding points cross defect depth of space distance distant objects distinct divergence double images evident exactly Experiment explained external images farther fibers field of view focal fore fovea Helmholtz heteronymous homonymous horizontal horopter horopteric line Illustrations impression inches inclined interocular space left eye left-eye image lens light line of sight look median plane middle monocular motion muscles nearer normal eye nose oblique observer ocular optic axes optic chiasm optic nerve optic vesicle outward parallel perceived perception perfectly phantom phenomena point of sight position primary projection pupil ray-line rays refractive represent retina retinal images right and left right eye right-eye image rotation sclerotic screen seen single sensation side stereoscope surface tion torsion turn the eyes vergence vibrations visual lines visual result