A Treatise on diseases of the eye

Front Cover
Lea & Febiger, 1910 - 944 pages
 

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Page 128 - ... and the subarachnoid space, sa. Both spaces have a blind ending in the sclera at e. The sheath of dura mater passes into the external layers, so.
Page 128 - The choroid, ch, shows a transverse section of its numerous blood-vessels, and toward the retina a dark line, the pigment epithelium ; next the margin of the foramen for the optic nerve, and corresponding to the situation of the choroidal ring, the choroid is more darkly pigmented. ci is a posterior short ciliary artery which reaches the choroid through the sclera. Between the edge of the...
Page 811 - Care must be taken at this point that the pressure of the knife-edge on the tissue shall be most gentle, and that the second incision shall terminate a trifle inside the extremity of the first, in order that the last fiber may be severed and thus allow the apex of the flap to fall down behind the lower part of the iris-membrane.
Page 36 - Sagittal section through the cerebral axis, to show the nuclei of the ocular nerves In the floor of the aqueduct of Sylvius and the fourth ventricle, and the course of the nerves to their exit. The various groups of cells from which the third nerve arises are seen.
Page 521 - ... all children will not be affected, the girls especially escaping; when several children are affected it is traceable to the mother ; the kind and degree will be the same for all the cases in the family.
Page 384 - It is extremely probable that the retina of the injured eye is in a state of inflammation, which is propagated along the corresponding optic nerve to the chiasma, and that thence the irritation which gives rise to inflammation, is reflected to the retina of the opposite eye, along its optic nerve.
Page 64 - III, outer nuclear layer; IV, external plexiform layer; V, layer of horizontal cells; VI, layer of bipolar cells (inner nuclear); VII, layer of...
Page 81 - The quotient found by dividing the sine of the angle of incidence by the sine of the angle of refraction, is called the index of refraction.
Page 811 - ... may be severed and thus allow the apex of the flap to fall down behind the lower part of the iris membrane. If the flap does not roll back of its own accord it may be pushed downward with the point of the knife. When the operation is completed, the knife is again turned on the flat, and quickly...
Page 128 - A, Ophthalmoscopic view : Somewhat to the inner side of the center of the papilla the central artery rises from below, and to the temporal side of it rises the central vein. To the temporal side of the latter lies the small physiologic excavation with the gray stippling of the lamina cribrosa.

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