. Journal of anatomy . rger than that of either No. I. or the control,which were about the same size. The Cornea.—Comparatively much thinner (about half the thickness)in the abnormal than in the normal eye. Showed a greater tendency tobreak up into its component laminae. The Sclerotic.—No marked differences were exhibited. In No. I. thiscoat was considerably narrower and more broken up into lamiuee than in Histology of the Eyes in Two Anencephalie Foetuses 371 the control. On the other hand, in No. III., where the sclerotic was as thickas, if not thicker than, in the control, this tendency was
. Journal of anatomy . rger than that of either No. I. or the control,which were about the same size. The Cornea.—Comparatively much thinner (about half the thickness)in the abnormal than in the normal eye. Showed a greater tendency tobreak up into its component laminae. The Sclerotic.—No marked differences were exhibited. In No. I. thiscoat was considerably narrower and more broken up into lamiuee than in Histology of the Eyes in Two Anencephalie Foetuses 371 the control. On the other hand, in No. III., where the sclerotic was as thickas, if not thicker than, in the control, this tendency was unnoticeable. InNo. III. the blood-vessels were very dilated. The Choroid.—The condition of this coat was apparently the same inNo. I. and the control. In No. III. the choroid was in places reduced toquite a narrow band, in other places being of normal thickness. The blood-vessels were much enlarged, and in consequence there was a practicallycontinuous layer of blood spaces in the substance of the whole Fig. 1.—Retina of noniial eye. Ganglion cells (A) numerous, nerve-tibre layer deep. The Iris.—In No. III. the iris was narrower, was composed of muchdenser tissue, and possessed a verj^ much smaller blood-supply than that ofeither No. I. or the control. The iris of No. I. resembled very closely that oftlie control in point of width, density of tissue, and size of blood-supply. Since none of the sections, either anencephalie or otherwise, wereequatorial, the iris was continuous across the anterior chamber of the the sections of No. III. it lay in contact with tlie posterior surface ofthe cornea, whereas in No. I. and the control it was freely suspended inthe anterior chamber of the eye. The Lens.—In No. I. and No. III. the lens was more flattened and largerthan in the control, in which it was almost circular in section. The lens ofNo. III. was slightly laiger than that of No. I. 372 Mr W. M. Oakden In the aneucephalic eyes the elongated lens cells we
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectanatomy, bookyear1867
