. A treatise on the diseases of the eye. he intra-vascular spaces are here also peculiarly conspicuous andstriking, which is due to the increase in the pigment of the stroma. Whereas, onthe i-ight side of the figure, the pigmentation of the epithelial layer conceals thesubjacent tissue and the vessels. Fig. 4. Choroiditis Disseminata Syphilitica, icith Secondary Atrophy of the Retina and Optic Nerve (p. 351). In this figure we notice very numerous, irregular, circumscribed spots, of palish-pink or whitish tint, surrounded by a dark fringe of pigment; others, appearingsimply as small black patc
. A treatise on the diseases of the eye. he intra-vascular spaces are here also peculiarly conspicuous andstriking, which is due to the increase in the pigment of the stroma. Whereas, onthe i-ight side of the figure, the pigmentation of the epithelial layer conceals thesubjacent tissue and the vessels. Fig. 4. Choroiditis Disseminata Syphilitica, icith Secondary Atrophy of the Retina and Optic Nerve (p. 351). In this figure we notice very numerous, irregular, circumscribed spots, of palish-pink or whitish tint, surrounded by a dark fringe of pigment; others, appearingsimply as small black patches. In some of the larger spots, a choroidal vessel canbe distinctly seen to pass over it. The optic disk is atrophied, and of a bluish is completely devoid of bloodvessels, excepting the two little twigs which canjust be discerned running over its edge. But not a single retinal vessel can be seenover the whole fundus; and on account of this atrophy of the retina, the choroidalvessels appear with unusual distinctness. Plate ^ter Lietreichs Atla: Th 0 £ .Hmta: .Liilillula. 812 EXPLANATION OF THE PLATES. PLATE III. Fig. Pigmentosa (p. 527). Numerous large, irregular, black figures are observed scattered about the fundus,being arranged at some points along the retinal vessels, which are extremely attenu-ated, and here and there quite unapparent. At other situations, the black patchesshow irregular prolongations, the extremities of which touch those of other they assume a certain similarity to bone corpuscles. The optic nerve iswhite and atrophied, and the retinal arteries are excessively small and attenuated. Fig. Albumiaurica (p. 513). This illustration is peculiarly characteristic of the ophthalmoscopic appearancespresented by the retinitis met with in Brights disease. At the disk, and itsvicinity, is observed a delicate gray opacity, which is caused by a serous infiltrationand proliferation of the connective tissue of the retin
Size: 1181px × 2117px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjecteye, booksubjecteyediseases, bookyear
