The specific infiltration of sympathetic ophthalmia, the essential elements of which are lymphocytes and epithelioid cells, is not always confined strictly to the uveal tract. It is true that the uvea is the primary seat of the lesion that is always the most highly developed in this tissue. However, contiguous structures may also take an important part in sympathetic ophthalmia. Meller, in the examination of a very rich material, described the frequency with which the retinal vessels are sheathed with lymphocytes ; he termed this condition perivasculitis sympaticans. He cited at the same time a few cases in which he encountered specific nodules in the layers of the retina. A. Fuchs wrote exhaustively on the common occurrence of specific infiltration in the sheaths of the optic nerve, and observed as a rarity instances in which he encountered specific nodules among the nerve bundles. However, so far as the sclera
SAMUELS B. SYMPATHETIC SCLERITIS. Arch Ophthalmol. 1933;10(2):185–197. doi:10.1001/archopht.1933.00830030033003
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