182 



SUBJECT INDEX 



Epithelial pigment layer (see pigment 



epithelial layer) 

 External limiting membrane, 18, 39, 



50, 51, 153 

 External scleral sulcus, 2 

 Eye, in relation to body size, 3 



shapes of, in various vertebrates, 3 

 size of, in various vertebrates, 2, 3 



Fibers, centrifugal nerve, 26, 27 



of MliUer (Mullerian fibers), 26, 27, 

 50, 51, 53 



optic (see optic fibers) 



retino-motor, 81 



zonular, 13 

 Flicker, 38 



Fovea centralis, 25, 29, 33, 35, 54, 71, 

 95-103, 108-119 



concavicHvate, 104, 117, 119 



convexiclivate, 104, 117, 118 



differentiation of, 54 



double, 98-102 



nasal, 98-102 



of various vertebrates, 96-103, 117 



temporal, 98-103 

 Foveola, 29 

 Fundus specialization, in various 



vertebrates, 66, 95-104 

 Fuscin, 16, 86 



Guanine, 6, 17 



Internal limiting membrane, 18, 50, 



51, 118 



lodopsin (visual violet), 128, 143 



absorption spectrum of, 130 

 Iris, 9, 11 



color of, 11 



muscles of, 9 



reaction of, 91 



retinal portion of, 11 



variations of, 11 



Kolmer's "droplets" (see "droplets" 

 of Kolmer) 



Lamina cribrosa, 4 



vitrea, 16 

 Lateral (external) geniculate body, 



19, 115, 116 

 Layers of retina, 18 

 degeneration of, in vitamin A de- 

 ficiency, 153-158 



differentiation of, 48-51, 58, 59 

 responses of, to light, 84, 85 

 width of, in relation to visual acu- 

 ity, 104-107 



Lens, origin of, 13 

 shapes of, 13, 14 

 suspensory ligament of, 7 

 variations of, 13, 14, 67-70 



Lentiform body (see ellipsoid) 



Macula, 25, 29, 54, 101-103, 108-119 



Melanin, 16, 17 



Metathalamus, 19 



Migration of pigment (see pigment 



migration) 

 Muscle, Briicke's, 8 



ciliary, 8 



dilatator pupillae, 9 



Muller's, 8 



sphincter pupillae, 9 

 "Myoepithelial" cells, 9 

 Myoid, of cones, 42, 47, 55, 77, 80 



of rods, 43, 47, 79 



Neopallium, 115 



Neuroepithelium, 48 



Night blindness, 124, 130, 143-150 



Oil globules (droplets), 42-44, 61, 90 

 Optic, cup, 16 



decussation, 112-114 



fibers, 109, 112, 113, 115 



tracts, 108, 109 



vesicles, 48 

 Ora serrata, 7 

 Orbiculus ciliaris (pars plana), 7 



Paraboloid, of cones, 42, 56, 61, 90 



of rods, 44, 56, 89 

 Pars ciliaris retinae, 8 

 Pars iridica retinae, 8 

 Pecten, 103, 104 



Photomechanical responses of retina, 

 74-92 



cone movements in, 77-79 



in relation to central nervous sys- 

 tem, 81, 82 



in relation to temperature, 80 



in relation to various chemicals, 80, 

 81 



pigment migration in, 74-77, 80 



rod movements in, 79 

 Photoreceptors (see cones and rods) 



