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June 1939


Author Affiliations


Arch Ophthalmol. 1939;21(6):935-965. doi:10.1001/archopht.1939.00860060045002

THE CHOROID  Besides the pathologic condition of Bruch's layer, that of the choroid attracts immediate attention, even in sections observed under low magnification. A normal choroid, preserved in a solution of formaldehyde, appears collapsed, thin and strongly pigmented, with flat, intensely staining nuclei, so that it requires careful examination to locate the arteries. Occasionally it may be thicker, but in such instances its veins are so filled with blood that it gives the impression of cavernous tissue in which the veins predominate, the arteries being pushed to the background. In my sections the choroid was decidedly thick at the posterior pole, but overfilled veins were not seen, or only exceptionally. Instead, there were many thick-walled arteries present, which in certain areas completely filled the space between Bruch's layer and the sclera. The choroid was moderately and irregularly pigmented and looked rather pale. Sometimes it appeared as though the pigment had