Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1897 - 318 páginas |
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Página 10
... right and left side , just in front of the middle or equator of the globe ( Fig . 3 ) . They are called severally ... right , and the fourth to the left , if we are speaking of the right eye . This is their action expressed generally ...
... right and left side , just in front of the middle or equator of the globe ( Fig . 3 ) . They are called severally ... right , and the fourth to the left , if we are speaking of the right eye . This is their action expressed generally ...
Página 11
... right and sinistrally for the left . It is seen that the oblique muscles , besides rotating the eye on its visual axis in opposite directions , co - operate with one another in turning the eye outward . This is neces- sary to counteract ...
... right and sinistrally for the left . It is seen that the oblique muscles , besides rotating the eye on its visual axis in opposite directions , co - operate with one another in turning the eye outward . This is neces- sary to counteract ...
Página 12
... right and the interior rectus of the left eye ; if to the left , the external rectus of the left and internal of the right . If we desire to look at a very near object , as , for example , the root of the nose , then the two interior ...
... right and the interior rectus of the left eye ; if to the left , the external rectus of the left and internal of the right . If we desire to look at a very near object , as , for example , the root of the nose , then the two interior ...
Página 34
... left eye with the hand . Gaze with the right eye at a distant point , say the wall , d . The optic axes are now nearly parallel , d R , d L. Tell a friend to ob- serve the pupil of the open eye . It is probably greatly enlarged . Now ...
... left eye with the hand . Gaze with the right eye at a distant point , say the wall , d . The optic axes are now nearly parallel , d R , d L. Tell a friend to ob- serve the pupil of the open eye . It is probably greatly enlarged . Now ...
Página 38
... right side , N , is adapted to near objects ; the left , F , to distant objects . Theory of Adjustment . — It is certain that in adjust- ing the eye for looking at very near objects , the lens becomes more convex . But the question ...
... right side , N , is adapted to near objects ; the left , F , to distant objects . Theory of Adjustment . — It is certain that in adjust- ing the eye for looking at very near objects , the lens becomes more convex . But the question ...
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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